Abstract
A high-efficiency, undoped, blue, organic light-emitting device was devised that employed a novel electroluminescent material 4-(7,10-diphenylfluoranthen-8-yl)- N, N-diphenylbenzenamine as electrofluorescence emitter. The device with a simple structure of ITO/ N, N′-bis(1-naphthyl)- N, N′-diphenyl-1,1′-biphenyl-4,4′-diamine/4-(7,10-diphenylfluoranthen-8-yl)- N, N-diphenylbenzenamine/4,7-diphenyl-1,10-phenanthroline/LiF/Al exhibited stable blue light emission of CIE chromaticity coordinates ( x = 0.19 ± 0.01 and y = 0.45 ± 0.02), and a current efficiency of 6.0 cd A −1 and a power efficiency of 4.6 lm W −1.
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