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, Yunzhang Wang, Xiaoming Zou, Mats Fahlam, Qianbing Zheng, Takayoshi Kobayashi, Toshio Masuda, 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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KEYWORDS
Electroluminescence

Polymers

Thin films

Absorption

Ionization

Luminescence

Information operations

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