Lab for Thin Films - Nanobiomaterials - Nanosystems - Nanometrology


smartonics logo

"Development of smart machines, tools and processes for the precision synthesis of nanomaterials with tailored properties for Organic Electronics"

NMP.2012.1.4-1 Pilot lines for precision synthesis of nanomaterials
Coordination by LTFN
Project Coordinator: Prof. S. Logothetidis

The target of the Smartonics project is the development of Pilot lines that will combine smart technologies with smart nanomaterials for the precision synthesis of Organic Electronic (OE) devices.
The Smartonics objectives are:

  1. Development of smart Nanomaterials for OEs (polymer & small molecule films, plasmonic NPs and super-barriers) by process and computational modeling optimization
  2. Development of smart Technologies (r2r printing and OVPD machines combined with precision sensing & laser tools and processes)
  3. Integration of Nanomaterials & Technologies in Pilot lines for precision synthesis of Nanomaterials & OE devices, optimization, demonstration and evaluation for Industrial applications.

grlight logo

"GR-Light - Green/k Sustainable Lighting"

Participation of LTFN
Project Coordinator: University of Patras
Duration: 21 months (2013)
AuThScientific Responsible: Ass. Prof. M. Gioti

The main idea of GR-Light is to develop the r2r manufacturing technology and the flexible OLED devices for the production of sustainable & eco-friendly lighting systems. To attain the r2r compatibility and lifetime extension all the materials and device structures will be suitable for printing and will be encapsulated with high barrier materials to protect them from atmospheric gasses.
The target is to effectively combine novel materials into high-throughput r2r printing and patterning methods, like inkjet printing and laser patterning. A r2r pilot system will be developed with the aim to fabricate flexible OLEDs. It will implement three important processes: multilayer deposition, patterning and packaging which will be evaluated and optimized to fabricate flexible OLEDs. The flexible OLED devices will be encapsulated and integrated with other electronic components (battery and OPV), towards energy saving–autonomous lighting systems. The proof of concept of the prototype r2r machine will be demonstrated through the fabrication of two specific prototypes such as interior-attractive autonomous lighting and smart clothing.

nanohybrid logo

"Multifunctional NANOcoatings with HYBRID organic-inorganic interfaces"

Participation of LTFN
Project Coordinator: University of Ioannina
Duration: 29 months (2013)
AuTh Scientific Responsible: Prof. S. Logothetidis

The NANO-HYBRID project aims at developing a new generation of industrial products based on multifunctional nanostructured coatings, which incorporate hybrid organic-inorganic interfaces. Nanostructured coatings can be either nanocomposites or nanolaminates or a combination of them.
In particular, two industrial applications will be considered:

  1. Exceptional hardness, wear and corrosion resistance nanocoatings with an adherent, organic lubricant overlayer of controlled lubrication performance.
  2. Coloration of organic ophthalmic lenses by depositing an inorganic, plasmonic and hard/scratch resistant coating by physical vapor deposition.


Plasmonic architectures for solar energy Harvesting (Plasmon-harvest)

ARISTEIA II Project No 3049
Coordination by LTFN
Project Coordinator: Prof. S. Logothetidis

Organic Photovoltaics (OPVs) have the potential to become a promising technology towards the harvesting of solar energy.One of the major advantages that this technology offers is the ability to fabricate devices out of solutions of the active materials employing cheap, scalable printing techniques with low environmental impact.
However, in order to realize mass products, the current improvement in efficiency and stability over lifetime must continue until the €/W allows for OPVs to become a low-cost alternative to conventional inorganic solar cells. Plasmon-Harvest Project will develop a universal methodology for the development of noble metalNP that will boost the efficiency of organic photovoltaics (OPV)devices for better performances. These nanostructures will be developed with processes that are compatible with today's industry needs for scalable techniques.
Noble metals (Au & Ag),that support surface plasmon resonances, for the absorption enhancement in organic absorbers in OPV.

The main objectives of Plasmon-Harvest are the:

  1. Development and optimization of NP for solar energy (plasmonic NP)applications,
  2. Development of a universal methodology for plasmonic nanocomposite thin films and design architectures that will lead to novel OPV devices,
  3. Fabrication of OPV devices with enhanced efficiency and performance and
  4. Investigation of fundamental phenomena& mechanisms to tailor NP, nanocomposite and device response.


"Development of graphene-based advanced hybrid electrodes to im-prove the performance of organic electronic devices"

Bilateral R&D Cooperation between Greece and Germany - SINERGASIES Project 2013-2015
Coordination by LTFN
Project Coordinator: Prof. S. Logothetidis

During the GRΕlect project, HZB (Germany) and AUTh (Greece) will investigate the implementation of graphene mono- and multi-layers at the hybrid interface between inorganic electrodes and organic layers in small molecules and polymer based OE devices, such as Organic Solar Cells (OSC) and Organic Thin Film Transistors (OTFTs).

The GRElect objectives are:

  1. to develop electrodes with buffer layers based on graphene that will be applied as partial or complete substitute for conventional transparent electrodes such as Indium Tin Oxide,
  2. to optimize the graphene -based electrodes functionality by p- and n- doping in order to form a charge selective transparent contact. The kind of chemical conditioning and graphene doping will be based on the application of the graphene electrode as cathode or anode depending on the specific device architecture (inverted or not).
  3. to investigate the optical, electrical, properties of the graphene-based electrodes and its effect on the growth of the adjacent organic layer by state-of-the-art analytical techniques
  4. to fabricate different OE devices with graphene-based electrodes, such as OSC and OTFTs.


"Nanomedicine for Advanced, Bio-active / -mimetic Materials for Cardiovascular Implants"

Post-Doc Project
Coordination by LTFN
Project Coordinator : Dr. Karagkiozaki Varvara MSc, Cardiologist

NanoCardio targets to manufacture advanced Nanocomposites and Bioinspired Materials with controlled surface properties for Cardiovascular Implants, to address the drawbacks of the currently used Stents.
It will give access to innovative Drug Eluting platform based on Nanocarriers for controllable drug release from medical implants.

Design and development of Biomimetic Nano-composites made of:

  1. Bioactive, nanoporous coatings for multifunctional activities- as drug reservoirs and to steer ECs adhesion and proliferation
  2. Therapeutic Nanoparticles

These advanced nanostructures will be Thrombo-protective and Endothelial Selective for Stent Applications, in order to accelerate Endothelialization and to overcome the complications of the late Stent Thrombosis and in-stent Restenosis of drug eluting stents.


"Nanomaterials with bioactive agents for cartilage regeneration cartilage and treatment of Osteoarthritis (NanoArthroChondros)"

SINERGASIES Project (2011)
Coordination by LTFN
Project Coordinator : Prof. S. Logothetidis

The main idea of NanoArthroChondros is the development of a new strategic method/treatment for cartilage re-generation in the knee joint region with the generation of nanobiomimetic scaffolds, functionalised with bioactive molecules and stem cells in order to ensure the attraction and the proliferation of specific cells promoting in this way tissue regeneration but also the use of innovative techniques for the study of protein-cellular interactions at nanoscale resulting in the restriction of animal studies. NanoArthroChondros aims to be the foundation for the production of implants from biomaterials that regenerate tissue for various clinical applications in the field of Regenerative Medicine.


"Development of Nanostructured Organic & Inorganic Materials and Thin Films for the Production of Organic Electronic Devices (NanOrganic)"

SINERGASIES Project (2011)
Coordination of LTFN
Project Coordinator : Prof. S. Logothetidis

The main idea of NanOrganic is the development of a complete technology of Organic Electronics that includes the development of improved organic semiconductors (polymers & small molecules), conductors, and nano-structured hybrid barrier materials with a combination of printing and vacuum processes, the development of organic electronic devices from these materials and the achievement of compatibility of the materials and processes with large scale and low cost production processes with the aim the direct application in industrial scale for the production of organic electronic devices onto polymer substrates. For the achievement of this idea, the NanOrganic will combine all the Greek excellence in this field.

yfatronic logo

"Development of Integrated Flexible Textile & Electronic Products (Yfatronic)"

SINERGASIES Project (2011)
Coordination of LTFN
Project Coordinator : Prof. S. Logothetidis

The main idea of YFATRONIC is the technology development for the integration of flexible organic photovoltaic devices onto textile products (e.g. textiles for tents, clothing etc.) and the design of the appropriate electronic circuits which will support OPVs for the charging of external portable electronics devices. The know-how acquired from this project will be the base for the integration of other kind flexible electronic devices onto textile products, like sensors, displays, antennas, etc. For the achievement of the above goals YFATRONIC combines all the Greek excellence and know-how in this field.


"REGPOT - Reinforce Organic Electronics Research Potential in Kentriki Makedonia (ROLEMAK)"

Coordination by LTFN
Project Coordinator: Prof. S. Logothetidis

Concept of ROleMak: To advance the research potential of Labs from the Physics Department (PD) of Aristotle University of Thessaloniki (AUTh), Greece to conduct high level R&D in OEs, through:

  • Strategic Partnership & Collaborations with European research groups with excellence in OEs for Know-how exchange with the AUTh team.
  • Recruitment of Exceptional Scientists with internationally acknowledged expertise in OEs
  • Improvement of AUTh's Research Infrastructure, in order to act as a research entity of excellence in OEs.
  • Dissemination & Exploitation of the results through conferences, workshops, seminars, exhibitions, stakeholder meetings, round tables and other promotional and matchmaking activities.

The Objectives of ROleMak are to:

  • Reinforce the S&T potential – knowledge & competences of AUTh to OEs by transferring & exchanging know-how from scientists & technology managers of excellent European Universities, Research Centers and Companies,
  • Recruit experienced scientists with established expertise in OEs to work with the AUTh team,
  • Upgrade the research infrastructure and peripheral equipment of AUTh to become competitive in the field of OEs. This infrastructure will be used by the ROleMak collaborators even after the end of the project reassuring, that way, the establishment of a research entity with excellence in OEs,
  • Disseminate & Exploit the acquired results in OEs by organizing Conferences, Exhibitions, Round Tables and other promotional events and networking through EC projects.


COLAE- Commercialization Clusters of OLAE

FP7- Coordination and support action
Project Coordinator: VTT Finland, with consortium of 17 partners
Participation of LTFN
AUTh Sci. Responsible: Prof. S. Logothetidis
Duration: 36 months (2011)
Download the press release here!

The main objective of this coordinated action is to promote the commercial exploitation of OLAE (organic and large-area electronics) technology for the benefit of European industry and business and for the welfare of European countries. Through the efforts of COLAE we will be able to provide to European companies effective access to the knowledge base and technology know-how of key European OLAE research partners and their regional OLAE clusters, to high-quality training experiences and courses, to OLAE product and business idea feasibility support, to the best European manufacturing, pilot production facilities and services, to advanced OLAE innovation process and to coordinated support for better IPR landscaping and exploitation as a foundation.



Grant agreement n ° 247745 (FP7)
Project Coordinator: Constantin von Dewitz
Participation of LTFN
AUTh Sci. Responsible: Prof. S. Logothetidis

In the NoE FlexNet, 17 participants from 11 European countries work together in order to support Europe in becoming a world leader in Flexible, Organic and Large Area Electronics (FOLAE).
FlexNet aims at interlinking Europe's FOLAE-expertise in the domains of science, technology development, components, devices and systems integration technologies. A special emphasis is set on the subsequent commercial exploitation of FOLAE-based systems knowledge - especially through SMEs - in order to enable a wide spread of FOLAE-based future businesses in Europe.
The NoE FlexNet supports the integration process of the scientific excellence of FOLAE-oriented European research on Materials, Devices and Systems. This part is complementary to the NoE PolyNet efforts. In addition, FlexNet integrates excellent scientific capacities from Southern and Eastern Europe.


"Dissemination of Remote and Virtual Laboratories for Natural Sciences and Engineering"

Grant agreement n ° 214006 (FP7) ECP-2008-EDU-428037
Participation of LTFN
Project Coordinator: Prof. Dr. Sabina Jeschke
AUTh Sci. Responsible: Prof. S. Logothetidis

In this project virtual laboratories and remote experiments (i.e. simulated experiments and experiments which are controlled remotely by computers) spread out over Europe are combined for the first time. They are reachable in an environment with central retrieval and access facilitating synchronous collaboration and user generated production.
At present, virtual laboratories and remote experiments are only used by the universities that created them, and these circumstances are changing only very slowly. The situation is awkward since the benefits and potentials of virtual laboratories and remote experiments are very high: No single university can afford the development of all the virtual laboratories and remote experiments necessary to cover the whole curriculum itself; this goal can only be attained at a European level. To lay the foundations for this, the big players in virtual laboratory and remote experiment technologies unite to create the technical and organizational framework for the mutual exchange of experiments and the future affiliation of other institutions. The "Library of Labs" is a unique access to virtual laboratories, remote experiments, transfer services, know-how transfer and opportunities for cooperation open to all European countries. This is especially of benefit to those countries and institutions that don't have the financial capacities to develop virtual laboratories or to set up remote experiments themselves. The embedding of the experiments in the curricula ensures a very sustainable use of the eLearning content. The universities of the consortium (and as we suppose others as well) will have great interest in the new infrastructure since it will on one hand improve the quality of the physics and engineering education and on the other hand reduce the costs of the experiments for every single partner. Thus, partners have an intrinsic interest in using and supporting the LiLa infrastructure beyond the termination of Community funding.


"Development and integration of processes & technologies for the production of Organic Low-cot & large-Area flexible Electronics (OLAtronics)"

STREP Project (2008 - 2011)
Coordination by LTFN
Project Coordinator : Prof. S. Logothetidis

The objectives of OLAtronics Project are the:

  1. Development and optimization of production processes for active and passive materials by establishing an effective combination of vacuum, wet and printing methods to provide materials with advanced properties, performance, stability and lifetime, low-cost and large-area processing,
  2. Effective encapsulation of the developed active and passive materials into components, and their large-scale fabrication onto flexible r2r substrates combined to real-time monitoring and control of materials process and quality by in-line optical techniques,
  3. Integration of the developed manufacturing technologies into a pilot-scale to allow the low-cost and large-area manufacturing of prototype device demonstrators, ultimately in large scale.


"NoE PolyNET - Network of Excellence for the exploitation of organic and large area electronics"

Grant agreement n° 214006 (FP7)
Project Coordinator: Dr. Lars Heinze (VDIVDE)
Participation of LTFN
AUTh Sci. Responsible: Prof. S. Logothetidis

The Network of Excellence (NoE) PolyNet aims to establish Europe in the area of organic and large area electronics as the world leader in science, technology development and subsequent commercial exploitation of printing and large area technologies for heterointegration of flexible electronics.
Future industrial Exploitation needs a research cooperation base and a service base to foster transfer from science to industry within EU. Therefore fragmentation of European research landscape has to be overcome.
The NoE PolyNet will support these aims with three core platforms:

  • a research cooperation platform
  • a service platform
  • a knowledge platform

For a long-term integration of European research landscape concepts for the continuation of research cooperation and service offers will be developed, validate and put into operation.
Impact is expected not only on the research landscape of Organic and Large Area Electronics but also indirectly on European industry by long-term stimulation of innovative technologies and new companies.
PolyNet is a part of a joint initiative of the European Commission, the Directorate General of Information Technology & Media and 4 Collaboration Action Projects within the seventh Framework Programme: OPERA, PolyNet, PolyMap & Prodi which are called The Quadriga Projects.


Project Coordinator: Dr. Péter NAGY
Participation of LTFN
AUTh Sci. Responsible: Prof. S. Logothetidis

NANOINDENT project aims to gather, improve, catalogue and present characterisation techniques, methods and equipment for nanomechanical testing. European-wide activities coordinated by a new virtual centre will improve existing nanoindentation metrology to reveal structure-properties relationship at the nano-scale. These methods are the only tools to characterise nanocomposite, nanolayer and interface mechanical behaviours in the nanometre range. This work will also lay down a solid base for subsequent efforts for defining and preparing new standards to support measurement technology in the field of nanomaterials characterisation. Steps include development of the classical and the dynamic nanoindentation method and its application to new fields, application of modified nano-indenters to new fields as scratching and wear measurement, firm and uniform determination of instrumental parameters and defining new standard samples for the new applications.

"Ultra-high barrier films for r2r encapsulation of flexible electronics" (FLEXONICS)

STREP Project (2005 - 2008)
Coordination by LTFN
Project Coordinator : Prof. S. Logothetidis

Flexible electronic devices (FEDs) will have a major impact in our daily life if they will be encapsulated into transparent, ultra-high barrier, flexible materials, providing protection against oxygen and vapor, long-term stability and endurance. The realization of such materials, compatible with roll-to-roll (r2r) production processes will allow cost effective large scale FEDs production.
FLEXONICS is a STREP Project with the goal to develop:

  • materials systems consisting of alternating inorganic/organic layers few nm thick to improve the current barrier properties of flexible films by at least a factor of 1000,
  • the relative r2r processes, which will be used for the production of such materials,
  • optical & real-time techniques for process control and optimization, with final and specific goal the effective encapsulation of flexible OPV and OLED devices.

The above objectives conform to the NMP activity on "Materials processing by radically innovative technologies". The project will extend the knowledge on hybrid organic/inorganic systems, their interfaces and their optical and barrier properties. New techniques will be developed to measure and model the ultra-low gas permeation.
Finally, the optical properties of the hybrid organic/inorganic layers and the light interaction with complex-structured materials will be studied at the fundamental level.

Selected as one of 11 best EU-funded research projects at EuroNanoForum 2013! Nano Magazine Feb. 2014

nano magazine Feb2014 Page 1  nano magazine Feb2014 Page 2

nanonet logo

"Thematic Network on Nanotechnologies and Nanobiotechnology"

Coordination by LTFN

The activities and the services of network NANONET cover the rapidly developing bands Nanosciences and Nanotechnologies. These areas are recognized continuously more as the more important lever of growth of modern technologies and economies. Any approach in the areas of Nanosciences and Nanotechnologies requires interdisciplinary approach. Precisely this interdisciplinary approach is materialised in NANONET with the attendance of laboratories and scientists with object that covers Physics, Science and Technology of Materials and Nanosystems and Nanobiotechnology.
The aim of this network is the creation of a core that will coordinate the services of laboratories of AUTH activated in the areas of Nanosciences and Nanotechnologies with scope the continuing enlargement initially inside AUTH and furthermore in the Greek area and finally the strengthening of its connections with production.
Coordinator of network NANONET is Prof. S. Logothetidis (Laboratory of Thin Films-Nanosystems and Nanometrology) with the participation of several Laboratories in Aristotle University of Thessaloniki, in Greece and Europe.

PENED Project 2005-2008
Coordination by LTFN
Project Coordinator: Dr. S. Logothetidis

The development of a complete technology of innovative nanomaterial and nanosystems with desirable functional properties, presents high scientific, technological and financial interest. This technology is expected to drive the new generation of products that will improve the quality of life and environment in the years to come. The objective of the Project is the development of Nanostructures and Superlattices for various applications. The Project targets the production of innovative nanomaterials and nanosystems with exceptional properties (such as ultra high hardness, high resistance to wear, corrosion, biocompatibility, antimicrobial properties), that will be used for the new generation of high quality products (biocompatible & antimicrobial saving razors, cutting and surgical tools, implants, biomaterials and biodevices, decorative and optical devices etc).

COST, Action 532 (2002-2007)
Project Coordinator Prof. Dr. Kenneth Holmberg, VTT Manufacturing Technology
Participation of LTFN
AUTh Sci. Responsible: Prof. S. Logothetidis

The main objective of the Action is to generate new scientific knowledge about the fundamental physical, chemical and mechanical phenomena governing friction, wear and lubrication. This knowledge will be used to develop novel low friction, wear control and environmentally adaptable lubrication solutions to solve the functionality of future engines and transmissions such as engines working with hydrogen fuels, micro-lubricated and dry lubricant free transmission applications.

Serbia- Greece Bilateral Project (2003-2005)
Coordination by LTFN

During the past decade low dimensional systems, such as thin films, multilayerd systems and nanostructures (e.g. carbon nanotubes) became one of the most interesting subject in material science, due to variety of exceptional properties they exhibit that makes them highly applicable in nanotechnology, info- & nanobio- technology and in medicine. The study of these systems has been the core subject of the successful research of the two sides from Greece (EL-team) and Serbia (Ser-team). The Ser-team develops original symmetry based approach for their investigation, while the EL-team has a long-time experience, mainly in the growth and reliable characterization of these systems.
The project enables a more intensive joint effort in the investigation of carbon-based nanostructures, including theoretical interpretation of the experimental results, as well as the experimental verification of the theoretical predictions. The main aim of the research is to make insight into the study of carbon based layered systems (thin films & multilayers) and nanostructures (e.g. carbon nanotubes) through the study of the mechanisms during growth, the electro-optical and vibrational properties of these systems and the optimization of the experimental conditions in order to enhance their physical, chemical and biological properties. Such information will enable fine-tuning of the properties important in nano- and opto-electronics, surface engineering, biocompatibility and even to provide novel nano-optical devices.

"Transparent Films Vacuum Coatings Machine with Integrated In-line Monitoring and Control (TransMach)"

GROWTH Project (3/2001 - 4/2004)
Coordination by LTFN
Project Coordinator : Prof. S. Logothetidis

TransMach is led by current and future needs for packaging films (30 GEuro products in 2001), optical coatings on flexible substrates, solar modules and flexible displays (20 GEuro in 2005), where cost efficient production and high quality transparent coatings by large area vacuum (LAV) machines are the drivers and Europe's difficulties. TransMach in an integrated approach develops an ultra-fast unit to monitor the processes and a method to screen transparent coating properties to demonstrate an intelligent and reliable LAV machinery with in-line control solving the difficulties in: processes (speed 10m/s, moving surfaces, surface cleaning and then coated), technical demands for coatings (defined optical and barrier properties), requirements for material and energy consumption (thickness), repeatability, high quality products and cost reduction.

TRANSMACH with its completion was rated from EC as outstanding and has resulted to the following Technology Transfer of results as shown in CORDIS Technology Marketplace.

  1. A methodology of correlation of optical-intermediate and functional transparent coatings properties
  2. A novel Ultra Fast Multi-Wavelength Ellipsometric (UFMWE) unit capable to monitor fast processes
  3. Integrated LAV machine (with incorporated UFMWE monitoring units, managed by a LAN) showing intelligent and highly reliable in-line control beyond existing standards in monitoring of the LAV

1 & 3 results were given a special promotion on the 'Technology Marketplace',
1. Improving the optical properties of transparent films
3. Product protection with perfect packaging

"Novel Anti-Reflective Coatings and Metal Contacts for the Optimization of the PhotoVoltaic Cell Efficiency"

IPE Cyprus (2002 - 2005)
Coordination by LTFN
AUTh Sci. Responsible: Prof. S. Logothetidis

The project APODOSIS is focused towards the reduction of the manufacture cost of integrated photovoltaic (PV) systems and to the increase of their yield, importing new innovative transparent reflective and metal coatings, grown with Physical Vapour Deposition techniques (magnetron sputtering - MS and electron beam evaporation - EBE). It will be realized the investigation of the possibility of production of a integrated cell - from the p-n junction (which is forecasted to be developed in the form of a-Si:H thin films) up to the reflective and metal coatings - with the exclusive use of only one growth technique (MS) and the determination of in-line production process.

PENED Project (2003 - 2005) ED01-256
Coordination by LTFN
Project Coordinator : Prof. S. Logothetidis

The improvement of the adhesion - connection between different (inorganic/organic) materials and the growth of thin films aiming towards the treatment of surfaces and the production of systems and nano-devices with desirable and functional properties (low friction, high hardness - reflectivity - resistance in erosion - barrier properties etc.), has a high scientific and technological interest, since it covers a wide area of applications (blades, optical systems, photovoltaics, microelectronics, displays, flexible packaging, biomaterials). The type of bonding with which two materials are connected, depends by their type, the chemical bond, the bonding (amorphous, crystalline), their surface energy, the atomic process during contact, which determine also their auto-organisation. The confrontation that of this subject is particularly complicated since these materials, usually in nanoscale, are amorphous, and cannot be characterized with conventional techniques. The surface of one must be modified atomically or a intermediate layer should be used so that the contact between them can be is optimised, and in combination with suitable nanostructures (e.g films) to achieve the desirable and functional properties of the system.

Greece-Germany Bilateral Project (2002-2004)
Coordination by LTFN
AUTh Sci. Responsible: Prof. S. Logothetidis

The development and production of transparent coatings of oxides (SiOx, AlOx) to coat the polymeric films with functional properties (high hardness, low friction coefficient, reflectivity, high oxygen and water vapor barrier properties) is a strongly demand in the field of flexible packaging. To meet this demand, the following two problems have to be solved: 1) The development of films aiming to surface modification of the polymeric films producing (oxide/polymeric substrate) systems, and 2) The improvement of the adhesion/bonding of different materials (oxides/polymers). Solving the above two problems is of high scientific and technological interest, and constitutes the objective of this project, since in addition to flexible packaging there is a wide range of applications in large scale optical systems (architecture building , cars), solar modules, microelectronics, flexible displays, etc. The complementary of the methods and characterization techniques applied by the Greek (EL) and German (DE) groups and their previous collaboration, expertise and available equipment ensure the successful completion of the project and strengthening of their collaboration in the field.

E-beam evaporation (EBE) is the main technique used for the deposition of transparent films onto polymers. The technical demands for transparent, functional coatings onto polymeric substrates are :

  • Good adhesion of the deposited coatings to the substrates
  • Well defined optical and barrier properties
  • Good wear resistance.

The main expected achievements of the project are:

  • The determination of the modification of the polymeric films technique to improve the adhesion of the deposited coatings to the substrate
  • The good optical response and wear resistance of the producing (oxide/polymeric substrate) systems
  • The high barrier properties of the coated polymeric films
  • The in-situ and real-time monitoring of the growth process

To achieve the above tasks the following techniques will be used: (i) low energy atomic beams and oxygen plasma techniques for the modification of the polymeric substrates in vacuum, (ii) growth of transparent films by EBE and computational methods/modelling of the films' growth and (iii) atomic level characterization techniques such as Spectroscopic Ellipsometry (IR-Vis-UV) for in-situ and real-time monitoring of the deposition process, X-rays Photoelectron Spectroscopy (XPS) to determine molecular composition and binding states of the elements on the surface, Atomic Force Microscopy (AFM) for surface roughness and topography study, Nanoindentation and Nanoscratching for mechanical properties measurements, as well as Peel-test for the measurement of the adhesion strength of the deposited transparent coatings and oxygen permeability measurements.

"Development of selected coatings: application on photovoltaic solar cells (HELIOVAT)"

IPE Cyprus (2001 - 2003)
Coordination by LTFN
AUTh Sci. Responsible: Prof. S. Logothetidis

The aim of HELIOVAT project is the development of a photovoltaic cell with a new anti-reflective selectively transparent coating (ARC). The performance of this new ARC is expected to exceed the 13%, which is the current one, whereas an anti-reflective percentage less than 10% is expected to be achieved. The collaborator company will fabricate a photovoltaic module of 2W power using the new anti-reflective coatings.

PAVET Project. (2001 - 2003)
Coordination by LTFN
AUTh Sci. Responsible: Prof. S. Logothetidis

The aim of this project is to solve the durability problems that organic ophthalmic lenses with anti-reflective (AR) optical coatings exhibit, by modifying the deposition processes of AR coatings, as well as the anti-scratch process. This will be accomplished with the introduction of ion bombardment during the deposition of thin films consist the AR coatings (ion beam assisted deposition - IBAD) by using an ion gun of medium energies (~ 50-200 eV), which will be mounted onto the deposition chamber. By this it is expected to develop thin films having more tough structure and higher hardness, whereas an enhancement of adhesion between the several interfaces in AR coatings is also expected. With the proper modifications in anti-scratch process, which is in use today, it is expected the optimization of the properties of organic lenses, the improvement of their durability and lifetime.

PAVET Project (2002 - 2003)
Coordination by LTFN
AUTh Sci. Responsible: Prof. S. Logothetidis

The aim of this project is the development of a new, more accurate process of forming the razor edge, which will be incorporated to the production process right after the stage of razor's forming with grinding wheels.
Available techniques, capable of controlling the forming of the razor edge with high precision (several hundred nm) are :

  • Ion Beam Bombardment (IBB) by using Kauffman sources,
  • RF Plasma Etching (RFPE),
  • Pulse-DC Plasma Etching (PDCPE), and
  • Laser Micromachining(LM)

The project's target is to investigate the capability of the above techniques to form the edge of the razor blades with an accuracy of several hundred nm and to find the optimum operation conditions for each one of them, in order to choose one, that could be productively applied in an intermediate stage of the current production process.

PENED 99ED645 (1/1/00-30/7/01)
Coordination by LTFN
Project Coordinator : Prof. S. Logothetidis

The aims of this project include the experimental and theoretical study of the microstructure, composition and mechanical properties of novel hard and superhard materials of the C-B-N system (sp3-bonded a-C, c-BN, b-C3N4). These materials are suitable for applications in surface engineering, protective coatings, optical, microelectronic and magnetic recording media, aeronautics and automotive industry, exhibiting similar structure and mechanical performance. In addition they can be used in complementary manner providing tailoring potential for specific industrial applications by using different processing or combinations of different materials e.g. superhard a-C multilayers with low friction coefficient, c-BN structures for high temperature applications and highly elastic CNx.

PENED 99ED361 (1/1/00-30/6/01)
Coordination by LTFN

The aims of the present project include:

  • The development of the production technology of pure amorphous Carbon (a-C) or Nitrogenated a-C films (a-C:N) rich in sp3 on flat Si and SiO2 substrates with in-situ and real time control of their thickness and quality.
  • The a-C and a-C:N films optimization using optical and electrical characterization techniques.
  • The investigation of Titanium Nitride (TiNx) as metallization material on a-C and a-C:N films.
  • The production of Schottky diodes of Al, TiNx/DLC, DLC:N and heterojunctions DLC, DLC:N/Si and their characterization by electrical techniques and low frequency noise measurements.
  • The experimental study of field emission properties of these films.
  • The final correlation between microstructural characteristics of a-C and a-C:N films with the performance and yield of the corresponding Schottky diodes, heterostructure and field emission devices.

The applications of a-C and a-C:N films are expected to expand soon to high power/high temperature electronic devices and low cost field emission displays) and cold cathodes.

PAVE 99BE392 (1/1/00-30/6/01)
Coordination by LTFN
AUTh Sci. Responsible : Prof. S. Logothetidis

The aims of the present project include the design and the construction of a pilot vacuum system (dimensions Æ1500x2000, base pressure 10-2mbar) and the adaptation of plasma transferred arc technique for surface treatments. Metallic alloys and ceramic coatings deposited onto steel substrates were compared to those deposited in the atmosphere. X-rays diffractometry (XRD), Scanning electron microscopy (SEM), and micro indentation techniques were used to characterize the coatings in terms of phase identification (XRD), microstructure features and morphology (SEM), and mechanical properties. It was found that coatings developed in vacuum exhibit significantly lower porosity and surface roughness, better crystallinity (bigger crystallites and less structure defects) and were harder than those developed in the atmosphere.

BRRT-CT98-5056 (1/1999-12/2001)
Project Coordinator: Dr.K. Wagemann (DECHEMA)
Participation of LTFN
AUTh Sci. Responsible: Prof. S. Logothetidis

The European Research Network for Sustainable Technologies (ERNST) provides a forum for maximising the profit from European projects by establishing contacts to exploit synergies and by providing help to exploit the results. In these 3 years 50 European research projects participated in ERNST, exchanging ideas as well as know-how and initiated new co operations.
These projects have been split up into different clusters:

  • Modelling, Simulation and Control of Production Processes
  • Instrumentation and Sensors
  • Catalysis
  • Membranes and Waste Water treatment

The main objectives archived over a period of three years are as follows:

  • To provide a European forum for the development, dissemination and exchange of scientific and technological knowledge and ideas relating to all aspects of the European process industries: research, development, exploitation, production, environmental aspects
  • To increase synergy between projects with a common industrial or technological strategic objective and to accelerate dissemination and exploitation of results.
  • To enhance the value of the Community's investments through knowledgeable and helpful monitoring of the projects including assessment of the progress of the work according to the work programme.
  • To provide a scientific, technological information interface between industry and the regulatory authorities with respect to the issues raised by the pursuit of sustainable (industrial) development.
  • To provide a consultancy to relevant EU and Member States R&TD Programme planners on opportunities for improving synergy and co-ordination of funding activities and on strategic research needs.

"Multiwavelength sensor for sub-micron particle analysis (Multisens)"

CRAFT (2/1999- 7/2001)
Project Coordinator: Dr. R.A. Zahoransky
Participation of LTFN
AUTh Sci. Responsible Prof. S.Logothetidis

The aim of this project is to develop a low cost, industrial grade real time submicron particle sensor that can be used as a means of enforcing compliance to emission standards and as a tool for development of clean engines and advanced aftertreatment technology. Novelty in the product design stems from its real time, high sensitivity, submicron particle measuring capabilities in the undiluted exhaust environment and software design to allow more accurate size analysis that accounts for non spherical particles, achieved exploiting this operating principle of multiwavelength laser extinction in combination with a white cell.

Participation of LTFN

The foresight is a method to try to identify the evolution of a Thematical Area (scientific, technological etc) that has as an objective the determination of the priorities to strengthen the innovation system.
The interested- parties/ participants have the possibility to design the strategies and of course to make early their choices. Foresight is a useful tool for Public and Private Bodies to shape their policies for Research and Technological Development.
In this Project the Thematical & Horizontal Areas that are explored are:

  • Information Technology - Telecommunications
  • Agricultural Technologies & Biotechnology
  • Nanotecnology - Materials - Industrial Technologies
  • Environment
  • Energy
  • Transportation
  • Economy in SE Europe
  • Human Resources

The questions to be answered are: in which technological- thematical areas are innovations expected in next 15 years, what is their chronological horizon, how they are expected to influence the development of Macedonia Region and what adjustments are needed in order to best exploit the challenges. The Team oriented the T.A., determining in this way the subjects of the Delphi Statements, taking into consideration that the production and industry continuously require more efficient operations that meet the competition and environmental needs and that Nanotechnologies will restructure the existing production technologies, health, environment management, energy production, information technology. Nanotechnology- Namnosciences and Multifunctional Materials will have great advancements and will provide possibilities for the production of new products, solutions in unsolved problems, increase in productivity- functionality, maintenance of raw materials, and reduction of energy consumption.

"Functionalized Ceramic Membrane Filter for Highly Efficient Soot Particle Removal"

BRITE EURAM III Project No: BE97 - 5088 (6/1998-5/2001).
Project Coordinator: Ms P. Stobbe
Participation of LTFN
AUTh Sci. Responsible Prof. S. Logothetidis

With the participation of two other research Institutes and four European Industries.
The present Industrial Research project addresses the problem of developing advanced ceramic filters for soot particle emissions control with the following main objective : to overcome problems of currently available ceramic filter technology in terms of material reliability pressure drop, collection efficiency for fine particles and ease of cleaning (?regeneration? by oxidation of collected soot) at a low cost by integrating : i) a silicon carbide (SiC)-based extruded monolithic filter, with very high collection efficiency for nano-sized particles, low pressure drop and high material reliability, ii) advanced catalytic coatings for soot oxidation incorporated into the filter microstructure and iii) adaptive control of flow direction in the ceramic filter based on comprehensive computer modelling tools.

TMR-Research Network FMRX960062 (1/1997 - 12/2001)
Project Coordinator : Prof. E. C. Aifantis
Participation of LTFN

The proposed interdisciplinary network on Spatio-temporal Instabilities in "Fellowships and Euroconferences in Mechanics of Materials" where several Deformation and Fracture, aims to bring together scientists from the mechanics, the materials science and the condensed matter
of the partners already participate. The results would be exploited in to advanced technology (manufacturing, microelectronics) and environment-related (hazardous waste storage, liquefaction) applications. The network will foster interdisciplinary and collaborative research on the following broad research subjects:
Fundamental theoretical/experimental/numerical studies in deformation and crack patterns at different length and time scales with emphasis on bridging continuum and discrete descriptions.
Understanding of quasi static and dynamic deformation localisation and failure mechanisms of monolithic and composite solids, including phase transformations, adiabatic shear bands, and crack nucleation/propagation phenomena.
Exploration of the impact of the above results into deriving processing-structure-property relations of novel materials (active composites, amorphous/nanophase solids); optimizing advanced technological processes (forming, drilling, cutting, coating); and predicting large-scale natural processes such as earthquake damage and liquefaction.

"Deployment of in-Situ Optical Monitoring Techniques for Tailoring Thin Film Properties for Specific Advanced Industrial Applications" (ISOTECH)

BRITE EURAM III, BRPR-CT96-0265 (1/97-12/99)
Coordination by LTFN
Project Coordinator : Dr. S. Logothetidis

The industrial present project is dictated by the current demand of manufacturing companies of razor and industrial blades, bearings and seals and piezoelectric quartz oscillators for improved product and component performance via the use of thin film surface coatings. The coatings materials properties of concern here are hardness, friction thermal and chemical stability, adhesion, fracture strength and wear resistance. Optimisation of these properties may be attained in the candidate coatings, which are single, graded or multilayered DLC- and /or TiNx? based thin film structures, through in-situ (during film growth), monitoring and control of their stoichiometry, composition, microstructure and thickness.
For the purpose of in-situ control, a low cost high speed unit based on the Spectroscopic Ellipsometry (SE) technique, is first developed in the project and further developed into a commercially available instrument of distinct competitive advantages. The deposition techniques to be used for the development and production of the surface coatings will be magnetron sputtering and closed film unbalanced magnetron sputtering. The latter will also be developed into a new line of superior industrial deposition systems equipped with the above in-situ monitoring low cost high speed SE (LCHSSE) unit.
ISOTECH with its completion was rated from EC as outstanding and has resulted to the following Technology Transfer of results as shown in CORDIS Technology Marketplace. (Visit this LINK)

  1. Deployment of in-situ optical monitoring techniques for tailoring thin film properties for specific advanced industrial applications (ISOTECH)
  2. Transparent films vacuum coatings machine with integrated in-line monitoring and control

1 result were given a special promotion on the 'Technology Marketplace'
1. Title: All weather coats

YPER 97, (97/P3-211) (7/1998-12/2000)
Coordination by LTFN
Project Coordinator : Dr. S. Logothetidis

The aim of this project is to investigate the deposition processes for the development of amorphous carbon and carbon nitride thin films that can be used as protective coatings in various optical systems. Such systems are the organic ophthalmic lenses with anti-reflective coatings. The applicability of these protective coatings is defined by the combination of the optical transparency with the high hardness and wear resistant character.

"Coatings for Optical, Electronic and Chemical Industries (COTECH)"

EPET II 333 (1/95-12/98)
Coordination by LTFN
Project Coordinator: Dr. S. Logothetidis, with the participation of five industries

The project's aims are summarized as following :

  • Growth of multilayered optical coatings, consisting of dielectric materials, on substrates of glass and plastic ophthalmic lenses: Antireflective (AR) or High Reflective (HR) in the VIS and NIR energy region
  • Comprehensive characterization of the surface and bulk properties of quartz crystals used in telecommunication industry. Optimization of quartz blank metallization process by using new deposition techniques (e.g. sputtering) and new metallic coatings (e.g. Ti films). Design of a modular high vacuum system (HVS) with magnetron sputtering deposition technique and in-home manufacture of its automatic control. Implementation of HVS in production line
  • Growth of DLC films rich in sp3 bonds using magnetron sputtering, as protective films on AR optical systems and testing of their mechanical and environmental stability
  • Development and characterization of thick wear-resistant multi-coatings using plasma spraying technique for protection and increase the performance of turbines (rotors and bearings) which are used in the production line of chemical industries

STRIDE HELLAS 348 (1/91-12/93)
Coordination by LTFN
Project Coordinator: Dr. S. Logothetidis, with the participation of two Greek industries

The project's aims are summarized as following :
PVC Resins : Quality control and improvement of the product manufactured by one of the biggest industries in Northern Greece.
Polymeric and composite materials : Basic infrastructure development and utilization of this infrastructure for the production of advanced polymeric materials.
Coatings and surface engineering : Advanced surface processing development for the improvement of erosion/corrosion and wear resistance of materials used in specific chemical environments in Northern Greece industries.
Modeling : Of thin films' properties and polymeric materials' processing.
The project was completed on January 31st 1993 and was ranked as one of the best ten projects of its category.

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