Highly efficient green organic light emitting diode with a novel solution processable iridium complex emitter.

Autor: Jou, Jwo-Huei, Li, Chieh-Ju, Shen, Shih-Ming, Peng, Shiang-Hau, Chen, Yu-Lin, Jou, Yung-Cheng, Hong, James H., Chin, Chih-Lung, Shyue, Jing-Jong, Chen, Shih-Pu, Li, Jung-Yu, Wang, Po-Hung, Chen, Cheng-Chang
Zdroj: Journal of Materials Chemistry C; 2013, Vol. 1 Issue 27, p4201-4208, 8p
Abstrakt: We demonstrate a high-efficiency green organic light-emitting diode (OLED) with a solution-processed emissive layer composed of a novel green light emitting iridium complex, bis [5-methyl-8-trifluoromethyl-5H-benzo(c) (1,5)naphthyridin-6-one]iridium(pyrazinecarboxylate). By coupling with a proper host, the green device shows at 1000 cd m−2 an external quantum efficiency of 23.8%, current efficiency of 95.6 cd A−1, and efficacy of 60.8 lm W−1, the highest among all reported OLEDs with a solution-processed emissive layer. The high efficiency may be attributed to the host possessing a zero electron injection barrier, resulting in a more balanced carrier-injection. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index