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Proceedings Paper

Electroluminescence of carbazole-substituted polyacetylenes
Author(s): Run G. Sun; Yunzhang Wang; Xiaoming Zou; Mats Fahlam; Qianbing Zheng; Takayoshi Kobayashi; Toshio Masuda; Arthur J. Epstein
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Paper Abstract

We present photo- and electro-luminescence, and hole mobility measurements of carbazole (Cz) substituted polyacetylene (PA-Cz) and poly(diphenylacetylene) (PDPA-Cz). The photoluminescence (PL) of the interband transition in PA-Cz thin film is quenched. PDPA-Cz shows a green-yellow emission with a PL efficiency about 30 percent of the interband transition. The hole mobility of PDPA-Cz is determined to be approximately 10 7 cm2/Vs and the ionization energy is 5.3 eV. PDPA-Cz forms robust thin films and is thermally stable up to 470 degrees C. For a structure of ITO/PDPA-Cz/Alq(tris(8-quinolinolato) aluminum)/MgAg EL quantum efficiency over 1 percent is achieved.

Paper Details

Date Published: 16 December 1998
PDF: 6 pages
Proc. SPIE 3476, Organic Light-Emitting Materials and Devices II, (16 December 1998); doi: 10.1117/12.332631
Show Author Affiliations
Run G. Sun, The Ohio State Univ. (United States)
Yunzhang Wang, The Ohio State Univ. (United States)
Xiaoming Zou, The Ohio State Univ. (United States)
Mats Fahlam, The Ohio State Univ. (United States)
Qianbing Zheng, Univ. of Tokyo (Japan)
Takayoshi Kobayashi, Univ. of Tokyo (Japan)
Toshio Masuda, Kyoto Univ. (Japan)
Arthur J. Epstein, The Ohio State Univ. (United States)


Published in SPIE Proceedings Vol. 3476:
Organic Light-Emitting Materials and Devices II
Zakya H. Kafafi, Editor(s)

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