Electroluminescence from both a light-emitting layer and hole transport   layer: spectral evidence for charge carrier tunneling injection

doi:10.1016/S0009-2614(98)01164-6

CORC > 北京大学 > 化学与分子工程学院

	Electroluminescence from both a light-emitting layer and hole transport layer: spectral evidence for charge carrier tunneling injection
	Gao, XC ; Cao, H ; Huang, CH ; Li, BG ; Ibrahim, K ; Liu, FQ ; Umitani, S
刊名	化学物理学快报
	1998
关键词	CONJUGATED POLYMERS DIODES DEVICES EFFICIENT CATHODE
DOI	10.1016/S0009-2614(98)01164-6
英文摘要	We investigate the electroluminescence spectra of a series of double- and triple-layered devices based on a rare-earth complex PTT,tris-(1-phenyl-3-methyl-4-isobutyryl-5-pyrozolone)-bis(triphenyl phosphine oxide) terbium. In triple-layer devices, besides green electroluminescence from the light-emitting layer PTT, blue emission from the hole transport layer TPD (N,N'-bis (3-methylphenyl)-N,N'-diphenyl-benzidine) occurs at high electric field strength (EFS) and its peak intensity increases with EFS, This indicates a charge carrier tunneling injection mechanism. At high EFS, the Fowler-Nordheim (FN) plot is close to Linear, supporting the tunneling mechanism. The large barriers at the cathode and anode interfaces are responsible for this FN behavior. In double-layer devices where the 8-hydroxyquinoline-aluminum layer is absent, TPD emission dominates the electroluminescence, proving that PTT possesses high electron mobility. (C) 1998 Elsevier Science B.V. All rights reserved.; Chemistry, Physical; Physics, Atomic, Molecular & Chemical; SCI(E); 16; ARTICLE; 5-6; 530-536; 297
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/215229]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Gao, XC,Cao, H,Huang, CH,et al. Electroluminescence from both a light-emitting layer and hole transport layer: spectral evidence for charge carrier tunneling injection[J]. 化学物理学快报,1998.
APA	Gao, XC.,Cao, H.,Huang, CH.,Li, BG.,Ibrahim, K.,...&Umitani, S.(1998).Electroluminescence from both a light-emitting layer and hole transport layer: spectral evidence for charge carrier tunneling injection.化学物理学快报.
MLA	Gao, XC,et al."Electroluminescence from both a light-emitting layer and hole transport layer: spectral evidence for charge carrier tunneling injection".化学物理学快报 (1998).