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

Autor:	Yu-Lin Chen, Cheng-Chang Chen, Jing-Jong Shyue, Jung-Yu Li, Shih-Pu Chen, Chieh-Ju Li, Shiang-Hau Peng, Yung-Cheng Jou, Shih-Ming Shen, Chih-Lung Chin, Po-Hung Wang, James H. Hong, Jwo-Huei Jou
Rok vydání:	2013
Předmět:	Materials science business.industry chemistry.chemical_element General Chemistry Green-light Photochemistry chemistry Electron injection Materials Chemistry OLED Optoelectronics Quantum efficiency Iridium business Layer (electronics) Diode Common emitter
Zdroj:	Journal of Materials Chemistry C. 1:4201
ISSN:	2050-7534 2050-7526
DOI:	10.1039/c3tc30606b
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1b2148191ac5b27f1da43d2afc773d9b https://doi.org/10.1039/c3tc30606b Zobrazit plný text záznamu