期刊
JOURNAL OF PHYSICS D-APPLIED PHYSICS
卷 43, 期 44, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0022-3727/43/44/442003
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-
资金
- Bureau of Energy of the Ministry of Economic Affairs [9455-CJ-1210]
A white organic light-emitting diode (WOLED) with a high power efficiency has been demonstrated by dispersing a host-free, yellow phosphorescent material in between double blue phosphorescent emitters. The device performance achieved a comparable value to that of using a complicated host-guest doping system to form the yellow emitter in WOLEDs. Based on this device concept as well as the molecular engineering of blue phosphorescent host material and light-extraction film, a WOLED with a power efficiency of 65 lm W-1 at a practical brightness of 1000 cd m(-2) with Commission Internationale d'Echariage coordinates (CIEx, y) of (0.37, 0.47) was achieved.
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