P-196: Controlling Recombination Zone in p-i-n White Organic Light-Emitting Diode

Autor:	Chin H. Chen, Shih Feng Hsu, Shiao-Wen Hwang, Chan-Ching Chang, Jia-Wei Ma
Rok vydání:	2006
Předmět:	business.industry Doping Analytical chemistry Dominant factor Triphenylamine Luminance chemistry.chemical_compound chemistry OLED Optoelectronics business Rubrene Color coordinates Recombination
Zdroj:	SID Symposium Digest of Technical Papers. 37:964
ISSN:	0097-966X
DOI:	10.1889/1.2433684
Popis:	P-i-n Devices with 2% Cs2CO3 doped BPhen as the n-type transporting layer and WO3 doped triphenylamine derivatives as the p-type transporting layer, coupled with a modified composition of sky blue DSA doped MADN and yellow rubrene doped NPB emitters, are investigated to control the RZ of carriers in WOLED. We found the shift of recombination zone (RZ) as revealed by the amount of blue and yellow emissions produced is a dominant factor leading to the variation in white CIEx,y color coordinates with respect to luminance. A color stable p-i-n WOLED with CIEx,y coordinates of (0.32, 0.43) was achieved at a driving voltage of 3.4 V with a power efficiency of 9.2 lm/W at 1000 cd/m2.
Databáze:	OpenAIRE
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