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Newsletter December 2012


Organic Electronics—Creating the Future in Thessaloniki

The LTFN Laboratory of Nanotechnology and Nanometrology of the Aristotelian University in Thessaloniki is turning into one of the most advanced laboratories for organic electronics in Europe.

The Laboratory, through the ROleMak program, is equipped with cutting edge instrumentation and is being converted into an advanced center for research on organic electronics. Internationally renowned researchers are currently in the Aristotelian University, to teach and to participate in its research programs.

Organic Electronics (OE) is rapidly expanding into a scientific and technological revolution and is expected to have even larger impact in our lives than microelectronics. Organic electronic devices (OEDs) have the potential to become a low-cost alternative to conventional inorganic counterparts, due to low material consumption and simple processing methods. OEDs will radically advance existing applications and will lead to novel applications for energy generation (organic photovoltaics-OPVs), visualization of information and lighting (organic light emitting diodes-OLEDs), electronics and communications (organic thin film transistors-OTFTs), smart information systems (RFIDs, e-paper), identification of biological systems (biosensors, environmental monitoring systems) and others.

ROleMak (Reinforce Organic Electronics Research Potential in Kentriki Makedonia) is an EU program designed to advance the research potential of labs from the Physics Department of Aristotle University of Thessaloniki (AUTH), Greece to conduct high level R&D in OE. It achieves these objectives through:
- Strategic partnership and collaborations with European research groups with excellence in OE for knowledge exchange with the AUTH team
- The recruitment of exceptional scientists with internationally acknowledged expertise in OE
- The improvement of AUTH’s research infrastructure, to act as a research entity of excellence in OE
- The dissemination and uptake of its results through conferences, workshops, seminars, exhibitions, stakeholder meetings, round tables and other promotional and matchmaking activities

The AUTH team includes 26 professors, 13 permanent PhD researchers, and roughly 60 scientific staff (PostDocs, PhD students) with extensive experience in thin-film material process, microelectronics and electronic design, nanometrology, electron microscopy studies, in-situ optical monitoring, and computational and modeling studies.

The Laboratory for Thin Films - Nanosystems & Nanometrology (LTFN) has experience in thin film technology, fabrication of inorganic, organic and hybrid nanostructured materials, developing/deploying in-situ and real-time monitoring techniques and in nanometrology.

Serving Industry through R&D
Based on its long expertise on thin film technology, optical diagnostics and nanometrology, LTFN operates as a centre of excellence and can provide services and know-how transfer to academia, research institutes and industry on:
- Fabrication of nanomaterials and microsystems (for optical, photovoltaic, optoelectronics, electronic, protective, decorative, catalytic and biomedical applications)
- Thin films and coatings technology of metals, semiconductors, insulators, nitrides, oxides and polymers
- Flexible organic electronic devices, organic semiconductors and conductors, barrier materials for encapsulation of flexible organic electronic devices
- Design of vacuum chambers, smart optical sensing systems (adapted to process) and non-destructive techniques
- High performance in-situ monitoring thin films growth and various processes
- Non-destructive optical characterization of thin films, coatings, nano- and bulk materials
- Microstructural and nanomechanical characterization of thin films, coatings and bulk materials
- Development of software and algorithms for process control, prediction of operational function and properties of thin films and microsystems
- Design and simulations of optical - PV & solar materials and systems

The main research activities of LTFN are focused on:
Thin Films and Nanosystems Fabrication: Thin films, multilayers deposition and microfabrication with various PVD and wet techniques, surface modification and materials surface treatment with ion beams and UV treatment, vacuum systems design and Process control

Flexible Organic Electronics: Development of organic semiconductors and conductors by wet methods, development of barrier layers by PVD techniques. Investigation of optical, electrical, structural properties of the organic semiconductors and conductors and charge transport mechanisms

Plasma Treatment & Surface Engineering: Ion beam processes, surface preparation and dry cleaning, materials surface treatment with ion beams

Optical Technology & Nanometrology: In-situ and real-time monitoring of thin film growth and plasma and cleaning, non-destructive characterization and nanometrology applications, ellipsometry and optical scattering instrumentation and measurements, diagnostic imaging and nanoparticles

Nanostuctural & Nanomechanical Properties: characterization and modeling of the surface nanotopography of thin films by SPM methods (AFM, SNOM), investigation of the materials structure and crystallinity by X-Ray methods (XRR, XRD, X-Ray Diffusion Scattering), investigation of the nanomechanical properties of thin films by nanoIndentation methods, analysis of their nanomechanical response by theoretical methods, surface properties investigation by contact angle measurements

Nanobiotechnology & Nanomedicine: Adsorption of biological factors (proteins, DNA, enzymes) onto nanostructured surfaces; investigation of the adsorption mechanisms by optical (spectroscopic ellipsometry), and surface measurements (AFM, SNOM, contact angle), surface bio-functionalization by ion and UV treatment, cytotoxicity, cell adhesion and proliferation of nanomaterials in different physical forms (Cell Lab facility)

Modeling & Software: Thin films growth and etching processes, optimization of growth parameters, ion beam process, micro and nano machining, optical - electronic - mechanical behavior of materials and microsystems

LTFN covers a wide spectrum of applications of technologies:
Flexible organic electronics: flexible organic light emitting diodes-OLEDs for displays and lighting, flexible organic photovoltaic cells-OPVs, flexible circuits, organic photodetectors, radio frequency identification tags-RFID

Nanoscience and Nanotechnology: Nanomaterials, Ion processes, nanotubes, nanoparticles, SAMs, nanoelectronics, nanomechanics

Information Technology: organic electronics, micro-electronics, optoelectronics and optics, storage and displays, micro - fabrication, micro- technologies

Renewable Energy Resources: organic photovoltaic cells (OPVs), OPV and PV materials, PV device design and simulations, solar thermal materials and systems, photometric measurements

Nanobiotechnology & Nanomedicine: protein, enzyme, DNA adsorption onto nanostructured surfaces, surface treatment to induce/enhance biocompatibility, optical, structural, surface and cytocompatibility characterization of biomaterials, nanocoatings for applications in nanomedicine (stents, orthopaedic implants, contact lenses, biosensors)