Photoluminescence quenching in poly(p-phenylene vinylene) derivatives

	Photoluminescence quenching in poly(p-phenylene vinylene) derivatives
其他题名	论文其他题名
	Chen X. H.; Wang Z. J.; Hou Y. B.; Xu Z.; Xu X. R.
	2000
发表期刊	Displays
ISSN	0141-9382
卷号	21 期号:2—3 页码:55-60
摘要	We investigated the photoluminescence (PL) quenching of the copolymer, poly(2,5-dimethyl-phenylenevinylene-co-2-methoxy-5-hexyloxy-phenylenevinylene (DMPPV-co-MHOPPV), focusing on the difference between pure films and copolymer-poly(ethylene oxide) (PEO) blends with and without applied bias in the LEDs. PL quenching of DMPPV-co-MHOPPV is decreased by dispersion in an inert host, PEG. Results show that the introduction of alkyl groups in the main backbone or copolymer, which can affect the interaction of polymer chain, and the PL quenching, can be decreased due to the decreasing of dissociation of bound excitons and limiting excitions to migrate quenching sites. In the LEDs, by studying the different PL quenching with the negative and positive bias, we infer that the internal field in the LEDs decreases the probability of dissociation of bound excitons. Our experimental results suggest that by means of tuning the chemical structure of polymers and the internal field of LEDs, the dissociation of excitons will be controlled and the luminescence quantum yield can be improved. (C) 2000 Elsevier Science B.V. All rights reserved.
收录类别	SCI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/25251
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Chen X. H.,Wang Z. J.,Hou Y. B.,et al. Photoluminescence quenching in poly(p-phenylene vinylene) derivatives[J]. Displays,2000,21(2—3):55-60.
APA	Chen X. H.,Wang Z. J.,Hou Y. B.,Xu Z.,&Xu X. R..(2000).Photoluminescence quenching in poly(p-phenylene vinylene) derivatives.Displays,21(2—3),55-60.
MLA	Chen X. H.,et al."Photoluminescence quenching in poly(p-phenylene vinylene) derivatives".Displays 21.2—3(2000):55-60.

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