Meetings & Events

1998 MRS Fall Meeting & Exhibit

November 30 - December 4, 1998 | Boston
Meeting Chairs:
 Clyde L. Briant, Eric H. Chason, Howard E. Katz, Yuh Shiohara

Symposium R—Organic Electronic and Photonic Materials and Devices

-MRS-

Chairs

Ananth Dodabalapur Lucent Technologies, Bell Labs Innovations 
Neil Greenham Cambridge Univ 
Olle Inganas Linkoping Univ 
Junji Kido Yamagata Univ 
Yang Yang Univ of California-Los Angeles

Symposium Support

  • Anelva Corporation

  • Dai Nippon Printing Co., Ltd.

  • Dojindo Laboratories

  • dpiX, Xerox Company

  • Hewlett Packard Laboratories

  • IMES Co., Ltd.

  • Nissan Chemical Industries

  • Sanyo Vacuum Industries Co., Ltd.

* Invited paper

SESSION R1: MATERIALS 
Chair: Ananth Dodabalapur 
Monday Morning, November 30, 1998 
America North (W)

8:30 AM *R1.1 
THIN FILM LIGHT EMITTING HETEROSTRUCTURES. M. F. Rubner, Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge MA. 

9:00 AM *R1.2 
WATER-SOLUBLE PPV FOR ORGANIC LIGHT EMITTING DEVICES. Fred Wudl, Roger Helgeson, Petra Buchacher and Yang Yang, Exotic Materials Institute and Departments of Chemistry and Materials University of California, Los Angeles, CA. 

9:30 AM *R1.3 
THE COPOLYMER APPROACH TO EMISSIVE MATERIALS FOR LEDS. Beng Sim Chuah, Henning Rost, Andrew B. Holmes, Stephen C. Moratti, Melville Laboratory for Polymer Synthesis, University of Cambridge, Cambridge, UNITED KINGDOM; Franco Cacialli, Jorge Morgado, Richard H. Friend, Cavendish Laboratory, University of Cambridge, Cambridge, UNITED KINGDOM. 

10:00 AM BREAK 

10:30 AM *R1.4 
THERMALLY STABLE HOLE TRANSPORTING POLYMERS BASED ON ARYLAMINES. H. Antoniadis, D.B. Roitman, M.R. Hueschen, J.N. Miller, R.L. Moon, J.R. Sheats, HP Labs, Palo Alto, CA; W.R. Shiang, E.P. Woo, W. Wu, Dow Chemical Co. Midland, MI. 

11:00 AM *R1.5 
ORGANIC FUNCTIONAL MATERIALS BASED ON TRIARYLAMINES - SYNTHESIS AND APPLICATIONS IN PHOTOVOLTAICS, ELECTROLUMINESCENT DISPLAYS AND PHOTOREFRACTIVE SYSTEMS. Mukundan Thelakkat, Makromolekulare Chemie I and Bayreuther Institut für Makromolekülforschung (BIMF), Universität Bayreuth, Bayreuth, GERMANY. 

11:30 AM R1.6 
BLOCK COPOLYMERS WITH PENDANT HOLE TRANSPORT, ELECTRON TRANSPORT, AND QUANTUM-DOT BINDING GROUPS. Jason Gratt, Massachusetts Institute of Technology, Dept of Materials Science and Engineering, Cambridge, MA; Robert E. Cohen, Massachusetts Institute of Technology, Dept of Chemical Engineering, Cambridge, MA. 

11:45 AM R1.7 
PATTERNED GROWTH OF POLY(P-PHENYLENE VINYLENE) BY CHEMICAL VAPOR DEPOSITION. Kathleen M. Vaeth and Klavs F. Jensen, Massachusetts Institute of Technology, Department of Chemical Engineering, Cambridge, MA. 

SESSION R2: LIGHT-EMITTING DIODES I 
Chair: Junji Kido 
Monday Afternoon, November 30, 1998 
America North (W)

1:30 PM *R2.1 
SELF-ASSEMBLED NANOSTRUCTURED CONJUGATED SYSTEMS FOR OPTOELECTRONICS. G. Leising, Inst fur Festkorperphysik, TU-Graz, AUSTRIA; Douglas Gin, University of California, Berkeley, CA. 

2:00 PM *R2.2 
OPTICAL PROPERTIES OF ORGANIC SEMICONDUCTOR THIN FILMS UNDER ELECTRICAL EXCITATION. V.G. Kozlov, P.E. Burrows, G. Parthasarathy, S.R. Forrest, Princeton University, Department of Electrical Engineering, Princeton, NJ. 

2:30 PM R2.3 
DESIGN ISSUES FOR MULTI-LAYERS OF LIGHT EMITTING POLYMERS UNDER SHORT AND INTENSE ELECTRICAL AND OPTICAL EXCITATION. N. Tessler, D.J. Pinner, P.K.H. Ho, M.A. Stevens, and R.H. Friend, Cavendish Laboratory, Cambridge, UK. 

2:45 PM R2.4 
Abstract Withdrawn. 

3:00 PM BREAK 

3:30 PM *R2.5 
POLYMER/NANOPARTICLE COMPOSITES WITH ENHANCED ELECTRONIC PROPERTIES. Sue Carter, Dept. of Physics, University of California, Santa Cruz, CA. 

4:00 PM R2.6 
THREE COLOR TUNING OF POLYMER LUMINESCENCE COLOR BY LOCAL DYE DROPLET APPLICATION. Thomas Hebner, J.C. Sturm, Princeton University Dept of Electrical Engineering, Center for Photonics and Opto-Electronic Materials, Princeton, NJ. 

4:15 PM R2.7 
MULTICOLOR POLYMER ELECTROLUMINESCENT DEVICES PROCESSED BY INKJET PRINTING. Shun-Chi Chang, Jayesh Bharathan, and Yang Yang, Department of Materials Science and Engineering University of California - Los Angeles, Los Angeles, CA. 

4:30 PM R2.8 
OPERATION MECHANISM OF LIGHT-EMITTING DEVICES BASED ON RUTHENIUM(II) COMPLEXES. A.J. Pal, E. S. Handy, M.F. Rubner, Massachusetts Institute of Technology, Department of Materials Science and Engineering, Cambridge, MA. 

4:45 PM R2.9 
LASING OF A PURE CONJUGATED HOMO-POLYMER FILM IN AN ADJUSTABLE MICROCAVITY. Christian Zenz, INFM, Universite di Sassari, ITALY; Salvatore Stagira, Margaritha Zavelani-Rossi, Mauro Nisoli, Sandro De Silvestri, INFM, Politecnico di Milano, ITALY; Wilhelm Graupner, Stefan Tasch, Günther Leising, Inst. f. Festkörperphysik, TU-Graz, AUSTRIA. 

SESSION R3: POSTER SESSION 
Chair: Neil C. Greenham 
Monday Evening, November 30, 1998 
8:00 P.M. 
America Ballroom (W)

R3.1 
EFFICIENT PURE RED ELECTROLUMINESCENCE FROM EUROPIUM COMPLEX UTILIZING QUANTUM-WELL STRUCTURE IN ORGANIC LIGHT EMITTING DEVICE. Yutaka Ohmori, Hiroshi Ueta, Yoshitaka Kurosaka, Yuji Hamada*, Hisakazu Takahashi*, Tatsuro Usuki* and Katsumi Yoshino, Department of Electronic Engineering, Osaka University, Suita, Osaka, JAPAN, * New Materials Research Center, Sanyo Electric Co., Hirakata, Osaka, JAPAN. 

R3.2 
QUANTUM DROPS: A NEW GENERATION OF QUANTUM DOTS. Keith Runge, Bobby G. Sumpter, Donald W. Noid, Michael D. Barnes, Chemical and Analytical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN. 

R3.3 
NANOTUBE-POLYMER COMPOSITE FORMATION. S. Curran, Dept of Physics, Trinity College Dublin, IRELAND; D.J. Tarbox, D. Binenti, R. Czerw, D.L. Carroll, Dept of Physics and Astronomy, Clemson University, Clemson SC; P.M. Ajayan, Dept of Materials Science and Engineering, Rensselaer Polytechnic Institute, Troy, NY. 

R3.4 
ELECTROLUMINESCENCE OF LAYERED ORGANIC POLYMERS THIN FILMS FABRICATED BY LANGMUIR-BLODGETT TECHNIQUE. Olexander V. Tolmachov, Nina I. Voronkina, Institute for Single Crystals, Kharkov, UKRAINE; Anatoliy A. Avdiyenko, Oleg S. Pyshkin, Institute for Low Temperature Physics and Engineering, Kharkov, UKRAINE. 

R3.5 
NONLINEAR OPTICAL PROPERITES OF THE SELF-ASSEMBLED DCHD MULTILAYER MICROCRYSTALS IN POLYMER COMPOSITES. Ke Yang1, Jin-an He2, Jayant Kumar1, and Sukant Tripathy2, Department of Physics1 and Department of Chemistry2, Center for Advanced Materials, University of Massachusetts Lowell, Lowell, MA; Hideyuki Katagi, Hachiro Nakanishi, Institute for Chemical Reaction Science, Tohoku University, Sendai, JAPAN. 

R3.6 
SYNTHESIS OF POLY(p-ETHYL PHENOL-co-4-HYDROXYTHIOPHENOL)/CdS NANOCOMPOSITES AND THEIR DISPERSION IN POLYCARBONATE. Jianzhao Wang, Kenneth E. Gonsalves, Polymer Program at the Institute of Materials Science and Dept. of Chemistry, University of Connecticut, Storrs, CT. 

R3.7 
ELECTROSTATIC SELF-ASSEMBLED HIGH CONDUCTIVITY METAL NANOPARTICLE-BASED THIN FILMS. Yanjing Liu, Nanosonic Inc., Blacksburg, VA; Richard O. Claus, You-Xiong Wang and Kristie Lenehan, Virginia Tech, Blacksburg, VA. 

R3.8 
BLUE LUMINESCENT ORGANOALUMINUM AND ORGANOBORON COMPOUNDS IN ELECTROLUMINESCENCE DISPLAY. James Ashenhurst, Qingguo Wu, Suning Wang, Dept of Chemistry, Queen's University, Kingston, Ontario, CANADA. 

R3.9 
POLYSILOXANES AS POTENTIAL PHOTOREFRACTIVE MATERIALS. Jun Li, Caimao Zhan, Jingui Qin, Wuhan University, College of Chemistry, Wuhan, CHINA; B. Kippelen, N. Peyghambarian, University of Arizona, Optical Science Center, Tucson, Arizona; S.R. Marder, California Institute of Technology, Beckman Institute, Pasadena, CA. 

R3.10 
CALCULATION OF POLARONIC AND BIPOLARONIC ENHANCEMENT OF HYPERPOLARIZABILITIES IN DITHIENYL POLYENES FROM AB INITIO QUANTUM METHODS. Steven Trohalaki, Robert J. Zellmer, Ruth Pachter, Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson Air Force Base, OH. 

R3.11 
COMPARISON AND SCREENING OF HOLE TRANSPORT MATERIALS BASED ON TRIARYLAMINES IN OLEDs. Christoph Schmitz, Mukundan Thelakkat, Hans-Werner Schmidt, Makromolekulare Chemie I, Universitat Bayreuth, GERMANY. 

R3.12 
PROPERTIES OF OLIGOTHIOPHENE THIN FILMS GROWN BY ORGANIC MOLECULAR BEAM DEPOSITION. R. Tubino, A. Borghesi, M. Zanchi, A. Sassella, Dipartimento di Scienza dei Materiali e INFM, Milano, ITALY; C. Botta, S. Destri and W. Porzio, Istituto Chimica delle Macromolecole-CNR, Milano, ITALY. 

R3.13 
ELECTRICALLY TUNABLE OPTICAL FILTER USING POLYMERS CONTAINING NANO-SIZED DROPLETS OF LIQUID CRYSTAL. Shiro Matsumoto, Seizou Sakata, Yasuyuki Sugiyama, Takayoshi Hayashi, NTT Integrated Information & Energy Systems Laboratories, Musashino, Tokyo, JAPAN; Katsuhiko Hirabayashi, NTT Opto-electronics Laboratories, Atsugi, Kanagawa, JAPAN. 

R3.14 
LIGHT EMITTING DIODES BASED ON BLENDS AND COPOLYMERS OF POLY(N-VINYL CARBAZOLE) AND POLYOXADIAZOLES. D.-K. DING, TECO Electric & Machinery Co., Ltd., Taipei, Taiwan, ROC; D.Shinoda, International Center for Materials Research, Kawasaki, Kanagawa, JAPAN; M. Sakakibara and Y. Takeuchi, JSR Corporation, Tsukuba, Ibaraki, JAPAN. 

R3.15 
PHOTOCHROMIC REACTIVITY OF DIARYLETHENE DERIVATIVES. Kingo Uchida, Eriko Tsuchida, Ryukoku Univ., Dept of Materials Chemistry, Otsu, JAPAN; Sinichiro Nakamura, Mitsubishi Kagaku Ltd., Yokohama, JAPAN; Masahiro Irie, Kyushu Univ., Department of Chemistry and Biochemistry, Fukuoka, JAPAN. 

R3.16 
CHARGE ACCUMULATION IN RUBRENE LIGHT-EMITTING DIODES: TRANSIENT CAPACITANCE, CONDUCTANCE AND ELECTROLUMINESCENCE RESPONSE. A. Chowdhury, S. Das and A.J. Pal, Indian Association for the Cultivation of Science, Department of Solid State Physics, Jadavpur, Calcutta, INDIA. 

R3.17 
SULFUR FUNCTIONALIZATION AS A STRATEGY FOR ENERGY GAP REDUCTION AND STABILIZATION OF n-DOPED STATES OF THIOPHENE-BASED POLYMERS. G. Barbarella, L. Favaretto, G. Sotgiu, M. Zambianchi, Consiglio Nazionale Ricerche, I. Co. C.E.A., Via Gobetti 101, 40129 Bologna; M. Mastragostino, Dipartimento di Chimica Fisica, Universitaí , Palermo, ITALY; C. Arbizzani, A. Bongini, Dipartimento di Chimica, Universitaí, Bologna, ITALY. 

R3.18 
CAROTENE AS A BIOMOLECULAR WIRE: ENVIRONMENTAL CONDUCTING AFM MEASUREMENTS. S.M. Lindsay, G. Leatherman, E. Durantini, A.L. Moore, T.A. Moore, D. Gust and P. Rez. Dept. of Physics and Astronomy and Department of Chemistry and Biochemistry, Arizona State University, Tempe, AZ. 

R3.19 
ROOM TEMPERATURE OPERATION OF THIN FILM PHOTOELECTRON MULTIPLIERS OF PERYLENE PIGMENT PREPARED USING AN IONIZED CLUSTER BEAM METHOD. Ken-ichi Sano, Masanori Watanabe and Toshinori Takagi, Ion Engineering Research Institute Corporation, Hirakata-shi, Osaka, JAPAN. 

R3.20 
THE PRESSURE EFFECT ON DIELECTRIC RESPONSE OF A ELECTROSTRICTIVE POLYMER: POLYURETHANE ELASTOMER. Z. -Y. Cheng, S. Gross, J. Su, and Q. M. Zhang, Materials Research Laboratory, The Pennsylvania State University, University Park, PA. 

R3.21 
STRUCTURAL PROPERTIES OF LIGHT EMITTING DEVICES BASED ON PARA-HEXAPHENYL. A.Pogantsch1, R.Blyth2, G.Feistritzer1, W.Graupner1, N.Koch1, M.Ramsey2, F.Netzer2, R.Resel1, S.Tasch1 and G.Leising1 1, Institut fuer Festkoerperphysik, Technische Universitaet Graz 2 Institut fuer Experimentalphysik, Universitaet Graz. 

R3.22 
ANALYSIS OF VAPORIZATION PROCESS IN THIN FILM AND SINGLE CRYSTAL VAPOR PHASE GROWTH OF ORGANIC SEMICONDUCTORS: $\alpha$-6T AND $\alpha$-4T. Ch. Kloc, R.A. Laudise, P. Simpkins, T. Siegrist, H. Schoen, B. Batlogg, Bell Laboratories, Lucent Technologies, Murray Hill, NJ. 

R3.23 
FLUORESCENT PROPERTIES OF THE COMBINED MULTILAYERED ORGANIC AND POLYMER STRUCTURES, PREPARED BY LB - TECHNIQUE. Nina I. Voronkina, Konstantin B. Vodolazhsky, Alexander V. Tolmachev, Institute for Single Crystals, Kharkov, UKRAINE. 

R3.24 
A COMPARISON BETWEEN Alq3 AND Almq3 DOPED STRUCTURES: EXTERNAL ELECTROLUMINESCENCE QUANTUM EFFICIENCY VERSUS ABSOLUTE PHOTOLUMINESCENCE YIELD. H. Mattoussi, H. Murata, C.D. Merritt, and Z.H. Kafafi, Naval Research Laboratory, Optical Sciences Division, Washington, DC; Y. Iizumi and J. Kido, Graduate School of Engineering, Yamagata University, Yamagata, JAPAN. 

R3.25 
A NEW TYPE OF HOLE-TRANSPORT MATERIAL BASED ON BITHIOPHENE STILBENE. Chengzhi Cai, Michael Kiy, Ye Tao, Ivan Biaggio, Peter Guenter, Nonlinear Optics Laboratory, Institute of Quantum Electronics, ETH-Zuerich, SWITZERLAND. 

R3.26 
FABRICATION AND PROPERTIES OF POLYMER LIGHT EMITTING DIODES BASED ON NEW LANTHANIDE COMPLEX CONTAINING POLYMERS. Jaehyun Kim, Young-Gi Kim, Jayant Kumar, and Sukant K. Tripathy, University of Massachusetts Lowell, Center for Advanced Materials, Departments of Physics and Chemistry, Lowell, MA; Mario J. Cazeca and Kethinni G. Chittibabu, Molecular Technologies Inc., Westford, MA. 

R3.27 
PREPARATION AND LUMINESCENCE CHARACTERISTICS OF A NOVEL LIGAND FOR LANTHANIDE METAL COMPLEXES. Jaehyun Kim, Young-Gi Kim, Dong-Yu Kim, Jayant Kumar, and Sukant K. Tripathy, University of Massachusetts Lowell, Center for Advanced Materials,Departments of Physics and Chemistry, Lowell, MA.; Kethinni G. Chittibabu, Molecular Technologies Inc., Westford, MA. 

R3.28 
FABRICATION OF PATTERNED ORGANIC EL DEVICES BY PHOTO-IRRADIATION METHOD. Satoshi Shirai, Takayuki Suzuki, Junji Kido, Graduate School of Engineering, Yamagata University, JAPAN. 

R3.29 
CORRELATION BETWEEN LUMINESCENCE PROPERTIES AND MICROSTUCTURE OF HYDROGENATED AMORPHOUS CARBON FILMS INVESTIGATED BY STEADY-TIME PHOTOLUMINESCENCE, X-RAYS AND INFRARED ELLIPSOMETRY. C. Godet, T. Heitz, J.E. Bouree, B. Drevillon, LPICM, Palaiseau, FRANCE; B. Bouchet, LURE, CNRS-MEN-CEA, Universite de Paris-Sud, Orsay, FRANCE; J. Dixmier, Laboratoire de Physique des Solides de Bellevue, Meudon, FRANCE. 

R3.30 
SYNTHESES OF PHOTO-CROSSLINKABLE POLY(ARYLENE ETHER)S AND THEIR APPLICATION TO ORGANIC EL DEVICE. Junji Kido, Tomohisa Yamada, Toshiyuki Hitotsuyanagi, Takayuki Suzuki, Graduate School of Engineering, Yamagata University, JAPAN. 

R3.31 
FABRICATION OF MULTILAYERS OF AN AZOPOLYMER FILM THROUGH LAYER-BY-LAYER POST AZO FUNCTIONALIZATION. Soo-Hyoung Lee, Srinivasan Balasubramanian, Nirmal K. Viswanathan, Dong-Yu Kim, Jayant Kumar, and Sukant K. Tripathy, Center for Advanced Materials, Department of Chemistry and Physics, University of Massachusetts Lowell, Lowell, MA. 

SESSION R4: TRANSISTORS 
Chair: Olle Inganas 
Tuesday Morning, December 1, 1998 
America North (W)

8:30 AM *R4.1 
RECENT PROGRESS IN ORGANIC AND POLYMER-BASED THIN FILM FIELD-EFFECT TRANSISTORS. Zhenan Bao, Ananth Dodabalapur, Howard E. Katz, Andrew J. Lovinger, V. Reddy Raju and John A. Rogers, Bell Laboratories, Lucent Technologies, Murray Hill, NJ. 

9:00 AM R4.2 
FIELD EFFECT CONDUCTANCE OF 1-6 MONOLAYER THICK CRYSTALS OF ORGANIC SEMICONDUCTORS. Eric L. Granstrom, Tommie W. Kelley, C. Daniel Frisbie, Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN. 

9:15 AM R4.3 
HIGH-MOBILITY POLYMER FIELD-EFFECT TRANSISTORS FOR INTEGRATED OPTOELECTRONIC DEVICES. H. Sirringhaus, N. Tessler, P. Brown, D. S. Thomas, and R.H. Friend, Cavendish Laboratory, Cambridge, UK. 

9:30 AM R4.4 
THIN-FILM TRANSISTORS WITH HIGH CARRIER MOBILITY BASED ON SOLUTION-CAST POLY(3-ALKYL THIOPHENE). Jianna Wang, Yen-Yi Lin, Weidong Qian, Thomas N. Jackson, The Pennsylvania State Univ, Center for Thin Film Devices, and Electronic Materials and Processing Research Laboratory, University Park, PA. 

9:45 AM R4.5 
QUATERTHIOPHENE SINGLE CRYSTAL THIN FILM TRANSISTORS TO DETERMINE THE INTRINSIC CHARGE TRANSPORT PROPERTIES. W.A. Schoonveld, J. Vrijmoeth, T.M. Klapwijk, Univ of Groningen, Dept of Applied Physics and Materials Science Center, Groningen, NETHERLANDS. 

10:00 AM BREAK 

10:30 AM *R4.6 
RELATIVELY LOW OPERATING VOLTAGE AND HIGH MOBILITY FIELD EFFECT TRANSISTORS BASED ON PENTACENE. Christos Dimitrakopoulos, Sampath Purushothaman, John Kymissis, Alessandro Callegari, IBM Research, T.J. Watson Research Center, Yorktown Heights, NY. 

11:00 AM R4.7 
LIQUID-PHASE FABRICATED FIELD-EFFECT TRANSISTORS BASED ON NOVEL OLIGOTHIOPHENES AND ANALOGUES. Wenjie Li, Howard E. Katz, Andrew J. Lovinger, Karl R. Amundson, Bell Laboratories, Lucent Technologies, Murray Hill, NJ. 

11:15 AM R4.8 
SOLVENT-INDUCED STRAIN RELAXATION IN THERMALLY EVAPORATED PENTACENE FILMS. D. J. Gundlach, T. N. Jackson, The Pennsylvania State University, Center for Thin Film Devices, University Park, PA; D. G. Schlom, The Pennsylvania State University, Dept. of Materials Science, University Park, PA; S. F. Nelson, Dept. of Physics, Colby College, Waterville, ME. 

11:30 AM R4.9 
ELECTROSTATIC SELF-ASSEMBLY OF ELECTRONIC AND PHOTONIC DEVICES ON POLYMER SUBSTRATES. Yanjing Liu, Nanosonic Inc., Blacksburg, VA; Richard O. Claus, You-Xiong Wang, Wei Zhao and Kristie Lenehan, Virginia Tech, Blacksburg, VA. 

11:45 AM R4.10 
ENZYMATIC SYNTHESIS OF WATER SOLUBLE CONDUCTING POLYANILINE WITH VARIOUS TEMPLATES. Ferdinando F. Bruno, Lynne A. Samuelson, Science and Technology Directorate, U.S. Army Natick, RD&E Center, Natick, MA; Ramaswamy Nagarajan, Sukant K. Tripathy, Dept. of Physics and Chemistry, Center for Advanced Materials, University of Massachusetts-Lowell, Lowell MA. 

SESSION R5: LED DEVICE PHYSICS 
Chair: Neil C. Greenham 
Tuesday Afternoon, December 1, 1998 
America North (W)

1:30 PM *R5.1 
CHARGE INJECTION INTO ORGANIC LIGHT EMITTING DIODES. U. Wolf, V.I. Arkhipov and H. Bässler, Institute of Physical-, Nuclear- and Macromolecular Chemistry and Centre of Materials Science, Philipps-University, Marburg, GERMANY. 

2:00 PM *R5.2 
DEVICE PERFORMANCE OF A POLYMER LIGHT-EMITTING DIODE. P.W.M. Blom and J.N. Huiberts, Philips Research Laboratories, Eindhoven, THE NETHERLANDS. 

2:30 PM R5.3 
ELECTRONIC STATE ALIGNMENT IN ORGANIC LIGHT EMITTING DEVICES. Frank Steuber, Joerg Staudigel, Matthias Stoessel, Juergen Simmerer, Siemens AG, Corporate Technology, Erlangen, GERMANY; Albrecht Winnacker, Department of Materials Science 6, University of Erlangen-Nuernberg, Erlangen, GERMANY. 

2:45 PM R5.4 
ELECTROABSORPTION SPECTROSCOPY ON ORGANIC LIGHT-EMITTING DIODE STRUCTURES. F. Rohlfing and T. Yamada, CREST, Japan Science and Technology Corporation (JST), Advanced Science and Technology Center for Cooperative Research, Kyushu University, Kasuga, Fukuoka, JAPAN; T. Tsutsui, Department of Applied Science for Electronics and Materials, Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka, JAPAN. 

3:00 PM BREAK 

3:30 PM *R5.5 
QUANTUM AND LUMINOUS POWER EFFICIENCIES IN ORGANIC LIGHT-EMITTING DEVICES: A KEY ISSUE. Tetsuo Tsutsui, Dechun Zou, Department of Applied Science for Electronics and Materials, Graduate School of Engineering Sciences, Kyushu University, Fukuoka, JAPAN; Hideyuki Murata, Zakya H. Kafafi, US Naval Research Laboratory, Washington, DC. 

4:00 PM *R5.6 
CARRIER TRANSPORT MECHANISMS IN ORGANIC ELECTROLUMINESCENT DEVICES. Jun Shen and Jie Yang, Dept. of Electrical Engineering and Center for Solid State Electronics Research, Arizona State University, Tempe, AZ. 

4:30 PM R5.7 
THE EXCITONIC SINGLET-TRIPLET RATIO IN A CONDUCTIVE ORGANIC THIN FILM. Marc Baldo, Diarmuid O'Brien, Vladimir Bulovic, Stephen Forrest, Dept. of Electrical Engineering, Princeton Univ., Princeton, NJ; Mark Thompson, Univ. Southern California, Dept of Chemistry, Los Angeles, CA. 

4:45 PM R5.8 
AB-INITIO MOLECULAR DYNAMICS STUDIES OF THE ORGANIC-CATHODE INTERFACE in AlQ3-BASED LEDs. Alessandro Curioni and Wanda Andreoni, IBM Research Division - Zurich Research Laboratory. 

SESSION R6: LIGHT-EMITTING DIODES II 
Chair: Yang Yang 
Wednesday Morning, December 2, 1998 
America North (W)

8:30 AM *R6.1 
ACTIVE MATRIX POLYMER ELECTROLUMINESCENT DISPLAYS. R. H. Friend, J. H. Burroughes, C. Towns, Cambridge Display Technology, Cambridge, UK, M. Kimura, S. Miyashita., T. Shimoda, Seiko-Epson, Base Technology Research Center, Suwa, JAPAN. 

9:00 AM *R6.2 
HIGH PERFORMANCE ORGANIC LIGHT-EMITTING DEVICES BASED ON COMPOSITE CATHODE STRUCTURES AND HIGH-Tg HOLE TRANSPORT POLYMERS. B. Kippelen, G.E. Jabbour, S.E. Shahen, J.F. Wang, N.R. Armstrong, N. Peyghambarian, University of Arizona, Tucson, AZ; E. Bellmann, R.H. Grubbs, Beckman Lab. of Chem. Synthesis, CalTech, CA; S.R. Marder, Beckman Inst. and Jet Propulsion Lab., CalTech, CA. 

9:30 AM R6.3 
FORMING A PASSIVE MATRIX ADDRESSED OLED WITH A LIFT-OFF PHOTORESIST. Christophe Py, Marie D'Iorio, Brian Williams, Jeff Fraser, Mae Gao and Marianne Roussy, Institute for Microstructural Sciences, National Research Council of Canada, Ottawa, ON, CANADA. 

9:45 AM R6.4 
ON THE WORKING PRINCIPLE OF LIGHT-EMITTING ELECTROCHEMICAL CELLS. L. Holzer, G. Feistrizer, W. Graupner, S. Tasch, F.P. Wenzl, G. Leising, Institut f¸r Festk–rperphysik, Technische Universit”t Graz, Graz, AUSTRIA; R. Blyth, M.G. Ramsey, F.P. Netzer, Institut f¸r Experimentalphysik, Universit”t Graz, Graz, AUSTRIA. 

10:00 AM BREAK 

10:30 AM *R6.5 
ORGANIC ELECTROLUMINESCENT DIODES USED TRIPHENYLAMINE OLIGOMERS CONNECTED BY CYCLOHEXYL GROUPS AS HOLE INJECTING MARTERIALS. Toshio Enokida, Toshikazu Onikubo, Michiko Tamano, Satoshi Okutsu, Shinichiro Maki, Yasumasa Suda, Toyo Ink Mfg. Co., Ltd., Tsukuba Research Laboratories, Ibaragi, JAPAN. 

11:00 AM R6.6 
WRITING A PATTERN INTO A LIGHT-EMITTING DIODE STRUCTURE WITH INTENSE LIGHT. Michael Cöllea, Frank Rohlfingb, Toshiki Yamadab, Tetsuo Tsutsuia,ba Department of Applied Science for Electronics and Materials, Graduate School of Engineering Sciences, Kyushu University, Kasuga, Fukuoka, JAPAN; b CREST, Japan Science and Technology Corporation (JST). 

11:15 AM R6.7 
METAL COMPLEXES HAVING FLUORINATED LIGAND AS ELECTRON TRANSPORT AND EMISSIVE MATERIALS IN ORGANIC EL DEVICES. Hiroki Hirata and Yukiya Yamashita, Central Research Institute, Mitsubishi Materials Corporation, Saitam, JAPAN. 

11:30 AM R6.8 
SYNTHESIS AND ELECTRICAL CHARACTERIZATION OF NOVEL ELECTRON TRANSPORTING MATERIALS: END-CAPPED DICYANO OLIGOTHIOPHENES. A. Yassar, F. Demanze and D. Fichou Laboratoire des MatÈriaux MolÈculaires,CNRS, Thiais, FRANCE. 

11:45 AM R6.9 
A NEW CLASS OF THERMALLY STABLE HOLE TRANSPORTING MATERIALS BASED UPON A FLUORENE CORE. Douglas E. Loy, Bryan E. Koene, Mark E. Thompson, Dept of Chemistry, Univ. of Southern California, Los Angeles, CA; Stephen R. Forrest, Dept of Electrical Engineering, Princeton Univ., Princeton, NJ. 

SESSION R7: EXCITED STATES AND INTERFACES 
Chair: Richard H. Friend 
Wednesday Afternoon, December 2, 1998 
America North (W)

1:30 PM *R7.1 
THE ROLE OF INTERCHAIN SPECIES IN ELECTROLUMINESCENT POLYMER PHOTOPHYSICS. Lewis Rothberga, Rachel Jakubiaka, Christopher Collisona, Waichou Wana and Bing Hsiehbba University of Rochester Department of Chemistry and NSF Center for Photoinduced Charge Transfer; b Xerox Wilson Center for Research and Technology. 

2:00 PM *R7.2 
ONE- AND TWO-PHOTON STIMULATED EMISSION IN OLIGOTHIOPHENES SINGLE CRYSTALS. Denis Fichou, Laboratoire des Matériaux Moléculaires, C.N.R.S., Thiais, FRANCE; Jean-Michel Nunzi, Vincent Dumarcher, LETI, CEA Saclay, Gif sur Yvette, FRANCE; Fabrice Charra, Alexandre Gusev, DRECAM, CEA Saclay, Gif sur Yvette, FRANCE. 

2:30 PM R7.3 
OPTICAL EXCITATIONS OF HIGHLY ORIENTED ULTRATHIN FILMS OF OLIGOTHIOPHENES. C. Botta, S. Destri, W. Porzio, Istituto Chimica Macromolecole-CNR, Milano, ITALY; G. Bongiovanni, A. Mura, Dipartimento di Fisica, Universita di Cagliari e INFM, ITALY; A. Borghesi, R. Roggero, A. Sassella, R. Tubino, Dipartimento di Scienza dei Materiali e INFM, Universita di Milano, ITALY. 

2:45 PM R7.4 
ULTRAFAST TRIPLET STATE PHOTOGENERATION MECHANISMs IN ORGANIC SEMICONDUCTORS. Guglielmo Lanzani, Christian Zenz, University of Sassari, Dept of Mathematics and Physics, ITALY; G. Cerullo, S. De Silvestri, Dept of Physics, Politecnico di Milano, ITALY; D. Comoretto, G. Dellepiane, University of Genova, Dept. of Chimica and Chimica Industriale, ITALY; W. Graupner, G. Leising, Graz University of Technology, Institute for Solid State Physics, AUSTRIA. 

3:00 PM BREAK 

3:30 PM *R7.5 
PHOTOPHYSICS OF ORGANIC THIN FILM LASERS. U. Lemmer, A. Haugeneder, C. Kallinger, J. Feldmann, Lehrstuhl fuer Photonik und Optoelektronik, Ludwig-Maximilians-Universitaet Muenchen, GERMANY; U. Scherf; MPI fuer Polymerforschung, Mainz, GERMANY; A. Gombert, V. Wittwer, Fraunhofer ISE, Freiburg, GERMANY; S. Berleb, W. Bruetting, M. Schwoerer, Experimentalphysik II and BIMF, Universitaet Bayreuth, GERMANY. 

4:00 PM R7.6 
THE NATURE OF ELECTRONIC STATES IN CONJUGATED ORGANIC MATERIALS - MOLECULAR VS. BAND STRUCTURE DESCRIPTION. E. Zojer, Institut f¸r Festk–rperphysik, Technische Universit”t Graz, AUSTRIA; M. Knupfer, Institut f¸r Festk–rper- und Werkstofforschung, Dresden, GERMANY; Z. Shuai, Service de Chimie des M·teriaux Nouveaux, UniversitÈ de Mons-Hainaut, Mons, BELGIUM; G. Leising, Institut f¸r Festk–rperphysik, Technische Universit”t Graz, AUSTRIA; J. Fink, Institut f¸r Festk–rper- und Werkstofforschung, Dresden, GERMANY; J.L. BrÈdas, Service de Chimie des M·teriaux Nouveaux, UniversitÈ de Mons-Hainaut, Mons, BELGIUM. 

4:15 PM R7.7 
FRONTIER ORBITAL ALIGNMENT, BAND BENDING AND INTERFACE DIPOLES AT ORGANIC HETEROINTERFACES DETERMINED BY COMBINED XPS AND UPS MEASUREMENTS. R. Schlaf, M.W. Nelson, P.G. Schroeder and B.A. Parkinson, Colorado State University, Dept. of Chemistry, Ft. Collins, CO; P.A. Lee, K.W. Nebesny and N.R. Armstrong, University of Arizona, Dept. of Chemistry, Tucson, AZ. 

4:30 PM R7.8 
CHARGE INJECTION BARRIERS AT MOLECULAR ORGANIC SEMICONDUCTOR-METAL INTERFACES. Ian Hill, Antoine Kahn, Princeton Univ, Dept of Electrical Engineering, Princeton, NJ. 

4:45 PM R7.9 
EXCITED STATE DYNAMICS IN ORGANIC BILAYER STRUCURES PROBED BY FEMTOSECOND TIME-RESOLVED PHOTOEMISSION SPECTROSCOPY. A.J. Makinen, S. Schoemann, Center for Photoinduced Charge Transfer, University of Rochester, Rochester, NY; A.R. Melnyk, D.A. Mantel, Xerox Corporation, Webster, NY; M.G. Mason, A.A. Muenter, Eastman Kodak Company, Rochester, NY; Y. Gao, Department of Physics and Astronomy, Rochester, University of Rochester, NY. 

SESSION R8: POSTER SESSION 
Chair: Ananth Dodabalapur 
Wednesday Evening, December 2, 1998 
8:00 P.M. 
America Ballroom (W)

R8.1 
MOLECULAR DESIGN AND NONLINEAR OPTICAL PROPERTIES IN THE SERIES OF ORGANIC CHROMOPHORES ON THE BASIS OF DICYANOVINYLBENZENE. Mikhail Antipin, Ronald Clark, Tatiana Timofeeva, Dept of Physics, New Mexico Highlands Univ, NM.