Detailed studies on energy loss mechanism in phosphor-sensitized fluorescent polymer light-emitting devices

	Detailed studies on energy loss mechanism in phosphor-sensitized fluorescent polymer light-emitting devices
	Ye TL ; Shao SY ; Chen JS ; Chen ZY ; Wang LX ; Ma DG
刊名	journal of applied physics
	2010
卷号	107 期号:5 页码:文献编号：054515
关键词	TRIPLET EXCITON CONFINEMENT HIGH-EFFICIENCY DIODES EMISSION LAYER BLUE
ISSN号	0021-8979
通讯作者	ma dg
中文摘要	we studied the main energy loss mechanism in electroluminescent (el) processes in phosphor-sensitized fluorescent polymer light-emitting devices. the used organometallic phosphor is fac-tris (2-phenyl-pridine) iridium [ir(ppy)(3)] and the used red fluorescent dye is 4-(dicyanomethylene)-2-t-butyl-6-(1,1,7,7-tetrame-thyljulolidyl-9-enyl)-4h-pyran (dcjtb). the investigation found that due to the stronger electron trapping ability of dcjtb than that of ir(ppy)(3), the excitons prefer to form on dcjtb molecules. the charge trapping on the dcjtb molecules obviously restrain the function of the phosphor-sensitizer ir(ppy)(3). moreover, the energy transfer from phosphorescent triplet state (t-p) to the fluorescent triplet state (t-f) also has great negative impact on the phosphor-sensitized fluorescent process. we clearly demonstrated these energy loss processes by steady-state and transient photoluminescence and comparison of device efficiency. (c) 2010 american institute of physics. [doi: 10.1063/1.3327442]
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000275657500131
公开日期	2012-06-07
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/43848]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Ye TL,Shao SY,Chen JS,et al. Detailed studies on energy loss mechanism in phosphor-sensitized fluorescent polymer light-emitting devices[J]. journal of applied physics,2010,107(5):文献编号：054515.
APA	Ye TL,Shao SY,Chen JS,Chen ZY,Wang LX,&Ma DG.(2010).Detailed studies on energy loss mechanism in phosphor-sensitized fluorescent polymer light-emitting devices.journal of applied physics,107(5),文献编号：054515.
MLA	Ye TL,et al."Detailed studies on energy loss mechanism in phosphor-sensitized fluorescent polymer light-emitting devices".journal of applied physics 107.5(2010):文献编号：054515.