16 December 1998 Electroluminescence of carbazole-substituted polyacetylenes
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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.
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Run G. Sun, Run G. Sun, Yunzhang Wang, Yunzhang Wang, Xiaoming Zou, Xiaoming Zou, Mats Fahlam, Mats Fahlam, Qianbing Zheng, Qianbing Zheng, Takayoshi Kobayashi, Takayoshi Kobayashi, Toshio Masuda, Toshio Masuda, Arthur J. Epstein, Arthur J. Epstein, } "Electroluminescence of carbazole-substituted polyacetylenes", Proc. SPIE 3476, Organic Light-Emitting Materials and Devices II, (16 December 1998); doi: 10.1117/12.332631; https://doi.org/10.1117/12.332631
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