Polymers and Devices of Polymer Light Emitting Diodes

Date: 12 Dec 2003 - 12 Dec 2003

Venue: SIMTech, Training Room 2, Tower Block, 71 Nanyang Drive

Some typical fluorescence polymers with excellent performances, triplet state phosphors and their optoelectrnic characteristics will be presented. The polymers are series of polyfluorene copolymers and polycarbazole copolymers, which were copolarized with heterocycle compounds with low energy band containing sulfur and selenium elements. The two kinds of copolymers shows saturated red electroluminescence (EL) emission with high quantum efficiency. The triplet state phosphors were investigated in polymer matrixes and the blend systems produce very high EL quantum efficiency in red emission. The very interested results are the EL efficiency decrease very slowly with increasing the drive current, which is important issue in application. In addition, the PLED fabrication process will be presented.

Speaker Biography

Prof. Peng received his Ph.D. in 1993 from the Changchun Institute of Physics, Chinese Academy of Science (CIP). He has been an active researcher in the field of organic electroluminescence for more than 10 years. He was invited to work as a visiting researcher in the Laboratory of Solid State Chemistry, Korea Institute of Science and Technology, Korea from 1994 to 1996 and later in the Department of Polymer Physics, National Institute of Materials and Chemical Research (NIMC), Japan from 1998 to 2001. His current research work is focusing on polymer optoelectronic device which include polymer light-emitting diodes, polymer field emission display and polymer photovoltaic cells.

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