Electroluminescence of carbazole-substituted polyacetylenes

Autor: Mats Fahlam, Toshio Masuda, Xiaoming Zou, Run G. Sun, Takayoshi Kobayashi, Qianbing Zheng, Yunzhang Wang, Arthur J. Epstein
Rok vydání: 1998
Předmět:
Zdroj: SPIE Proceedings.
ISSN: 0277-786X
Popis: 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.© (1998) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Databáze: OpenAIRE