OSC-08 Programme: Session 4

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Programme: Session 4

On Day One and Day Two of the Conference Session 4 will host presentations of the papers that have been selected by the OSC-08 peer review committee.

The following papers have been selected. The timetable for presenting these papers will be published here shortly.

Tuesday 30 September:
13:15-13:45	Organic Light-Emitting Diodes: Top vs. Bottom Emitter OLED devices are made in both top- and bottom-emitter active-matrix configurations. Advantages and disadvantages of the two alternatives, together with a peek at the future, are described and discussed. Author: Ronald S. Cok, Eastman Kodak Company, USA
13:45-14:15	Reproducible potentiostatic binding and release of glutamate from overoxidised polypyrrole for application as a neurochemical switch We present initial results on the development of a potentiodynamically controlled glutamate switch operating under physiological conditions. The results of controlled fabrication of glutamate selective polypyrrole layers and the binding and release of glutamate from these polymer layers are discussed. Authors: E von Hauff, Y Meteleva-Fischer, D Hellmann, J Parisi, Institute of Physics, Energy and Semiconductor Research Laboratory, Carl von Ossietzky University of Oldenburg, Germany
14:15-14.45	A self-writing smart label The self writing smart label does not depend on a battery or a reader system. It may be read out by eye at any time and is capable of monitoring time and temperature exposure. Author: Prof Dr Meinhard Knoll, Institute of Physical Chemistry, University of Muenster, Germany
14.45-15.15	Towards large area roll-to-roll manufactured MEMS display In this paper the roll-to-roll (R2R) manufacturing process of flexible large area MEMS display is reviewed. The four phase manufacturing process consists of electrode pattering, printing of optical spacer and gap spacer layers and lamination. Authors: Jukka Hast, Olli-Heikki Huttunen, Johanna Hiitola-Keinänen, Jarno Petäjä, Harri Kopola, Arto Maaninen, Printed Electronics and Optics Centre, VTT, Finland; Chengyao Lo, Hiroshi Toshiyoshi, Hiroyuki Fujita, Institute of Industrial Science, The University of Tokyo, Japan
15:15-15:45	Time to visit exhibition
15:45-16:15	Break and exhibition
16:15-16:45	Solution-Processable Materials for Transistors and Circuits We demonstrate high-mobility p- and n-channel OTFTs fabricated using solution-processed and printed semiconductors and dielectrics. These devices, exhibiting mobilities > 0.5 cm²/Vs in the air, are fabricated in ambient conditions. Author: Antonio Facchetti, Polyera Corp, USA
16:45-17:15	Analysis of effects of adhesives on the operation of PQT and PHT OFETs Tests of the chemical suitability of certain adhesives and sealants for use with polymeric (PHT and PQT) transistors showed all the materials apart from an encapsulation silicone to degrade the electrical operation of the transistors. Authors: Janne Koskela, Ari Kilpelä, Department of Electrical and Information Engineering, University of Oulu, Finland
17:15-17:45	Large area flexible top emissive OLEDs on Metal foils for roll-to-roll production We discuss the fabrication and characterisation of flexible, top-emissive OLEDs on metal foils that have been designed to be compatible with roll-to-roll production techniques for lighting and signage. Authors: Joanne Wilson, Dorothee Hermes, Peter Rensing, Stephan Harkema, Harmen Rooms, Leo Toonen, Ton van Mol, Jaap Lombaers, Holst Centre / TNO, The Netherlands; Cristina Tanase, Philips Research, The Netherlands
17:45-18:15	Fully spray coated organic photodiodes for position-sensitive detectors We present the fabrication of fully spray-coated photodiodes with reproducible dark and photocurrents. The bulk heterojunction diodes show dark current densities of 5x10E-5 mA/cm² at a reverse bias of -5 V, responsivities of 0.34 A/W at 530 nm, a NEP of 1x10E-13 W/Hz1/2 and a normalized detectivity of 2x10E10 Jones. Fully-organic OPDs have been fabricated with tunable spectral sensitivities covering the visible to near-infrared spectrum up to 1 µm. Authors: O Hayden, J Kern, S Tedde Siemens AG, Germany
18:15-19:15	Exhibition
19:15-19:45	Coach to dinner venue
19:45-22:15	Networking dinner and presentation of OSIA 2008 awards

Wednesday 1 October:
09:00-09:30	Thin film encapsulation of organic LEDs Thin-film encapsulation of OLEDs on basis of a SiN barrier layer is applied to reduce and delay the formation of black spots. These spots occur when the device is exposed to the ambient atmosphere. Two variants of thin-film encapsulation will be presented. Authors: Peter van de Weijer, Gerard Rietjens, Cristina Tanase, Herbert Lifka Philips Research Laboratories The Netherlands; Jasper Michels, Ferdie van Assche, Ton van Mol Holst Centre / TNO The Netherlands
09:30-10:00	Solution processable White PLED materials for lighting White Polymer-LED materials are emerging as the next technology for solid state lighting. These solution processable materials offer low cost fabrication and we will report improved lifetime, efficiency, CRI and colour stability over operating lifetime. Authors: Thomas Pounds, Richard Wilson, Ilaria Grizzi, Sumation, UK
10:00-10:30	Optical Modelling of Small-Molecule Red and Green Bottom-Emitting OLEDs An optical model for organic LEDs is presented and validated against experimental data. Conclusions are drawn concerning the effect of composite ITO/Ag anodes and process variations on the optical characteristics of red and green bottom-emitting devices. Authors: M Furno, R Nitsche, K Leo, Institut für Angewandte Photophysik, Technische Universität Dresden, Germany
10:30-11:00	Break and exhibition
11:00-11:30	Simulation and experimental study of degradation phenomena in organic electroluminescent structures Time dependence of current-voltage-luminance characteristics and electroluminescence spectra were investigated to understand the degradation mechanism OLEDs with different type of novel organic materials and cathodes. Different approaches were considered concerning simulation of degradation phenomena OLEDs, including Joule effects, interdiffusion effects, electrochemical reactions, photo-degradation etc. Authors: N Usov, S Stakharny, V Tarasov, Cyclone JSC, Russia; O Ermakov, Sapfir JSC, Russia; M Kaplunov, I Yakushchenko, Institute of Problems of Chemical Physics, Russian Academy of Sciences
11:30-12:00	Ribtan - a new graphene-based material for electronics We developed Ribtan - a new proprietary graphene-based material, and a proprietary technique for its fabrication over large substrate area. The new technology allows manufacturing of Ribtan material in a wide range of electrical properties, such as insulating, semiconducting, and metallic. Low cost printing deposition and inexpensive processing make materials attractive for electronic applications such as Home TV LCD and Integrated Circuits. Authors: PE Khokhlov, A Krivoschepov, Pavel Lazarev, V Utochnikova, Carben Semicon Ltd, Russia
12:00-12:30	Optical Digital Audio Interconnect Composed of Organic Light Emitting Diodes and Organic Photodiodes as Optoelectronic components An optical interconnect using solely organic optoelectronic components is presented. Careful optimization of the organic light emitting diodes and photodiodes allows us to successfully transmit a digitized audio signal based on the S/PDIF-format (2.8224 Mbit/s). Authors: Sebastian Valouch, Martin Punke, Siegfried W Kettlitz and Uli Lemmer, Light Technology Institute (LTI) Universität Karlsruhe Germany
12:30-13:30	Lunch and exhibition
13:30-14:00	Molecular level homeotropic pn-junction solar cells We developed a photovoltaic material with efficient charge separation upon photoexcitation and segregated carriers transport. We discuss correlation between molecular design and processability of the material. Authors: Evgeny Morozov, Pavel Lazarev Cryscade Solar Ltd, Russia
14:00-14:30	Advances in lithographic patterning of micron-sized features on flexible substrates In this paper advances in the lithographic patterning of micron-sized features on flexible substrates are addressed. An in-house developed handling method provided excellent dimensional stability to foils during processing and yielded overlay accuracies better than 0.5 m. The optical lithography patterning process yielded uniformly distributed micron-sized features over the whole 6 inch wafer. Authors: M�ria P�ter, Fran�ois Furthner, Bas van der Putten, Gerwin Gelinck, Erwin Meinders Holst Centre / TNO, The Netherlands; Tom Geuns, Philips Research Europe, The Netherlands; Wim de Laat, ASML Netherlands BV, The Netherlands
14:30-15:00	New appraoch to device model for organic bulk hetero junction solar cells Based on Fermi statistics and Gaussian density of energy states, a new device model for organic bulk-heterojunction solar cells is proposed. The characteristics of organic BHJ solar cells are numerically analyzed and compared with experiments. Authors: Ying-quan Peng, Chao-zhu Ma, Jian-ting Yuan, Run-sheng Wang, School of physical science and technology, Lanzhou University, China
15:00-15:30	Break and exhibition

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