期刊文献+

双层异质结器件载流子复合位置的研究 被引量:1

Recombination Sites of Carriers in Double Layer Heterojunction Devices
下载PDF
导出
摘要 载流子的复合是有机电致发光过程的一个重要环节,它直接影响着器件的效率,稳定性,寿命等性能。以双层器件ITO/N,N'-Diphenyl-N,N'-bis(1-naphthyl)-(1,1'-biphenyl)-4,4'-diamine(NPB)/tri-(8-hydroxy-quinoline)-aluminum(Alq3)/Mg:Ag为基础,以红光掺杂剂4-(dicyanomethylene)-2-t-butyl-6-(1,1,7,7-tetramethyljulolidyl-9-enyl)-4H-pyran(DCJTB)为探针,通过改变在Alq3层中掺杂层的厚度,研究了双层异质结器件中载流子的复合位置。结果表明,对于双层器件NPB/Alq3,载流子的复合及激子的辐射衰减位于界面处的Alq3层0~10nm范围内。 Recombination of carriers in organic light emitting diodes (OLEDs) is an important factor, which directly influences the device performances such as the efficiency, stability and lifetime, etc. Based on double layer (DL) device : ITO/N, N'-Diphenyl=N, N'-bis (1- naphthyl)-( 1, 1'-biphenyl) -4, 4'-diamine (NPB)/tri (8-hydroxyquinoline) aluminum ( Alq3 ) / Mg : Ag,recombination sites of carriers in DL heterojunction device have been studied by using red dopant 4-( dicyanomethylene)-2-t-butyl-6-( 1, 1, 7, 7-tetramethyljulolidyl-9-enyl)-4H-pyran (DCJTB) as the probe and changing thickness of doping layer in Alq3 host layer. Results showed that,in this DL device, the carrier recombination and exciton diffusion and radiative declining would generate in the range of 0-15 nm from NPB/Alq3 interface.
出处 《半导体光电》 EI CAS CSCD 北大核心 2006年第4期373-375,共3页 Semiconductor Optoelectronics
基金 部级预研基金资助项目(51402040205)
关键词 复合位置 激子 掺杂剂 异质结器件 recombination site exciton dopant heterojunction device
  • 相关文献

参考文献4

  • 1Wang D,Shen J.A theoretical model for carrier transport in disordered organic materials[J].Synthetic Metals,2000,111-112:349.
  • 2Naka S,Okada H,Onnagawa H,et al.Carrier transport properties of organic materials for EL device operation[J].Synthetic Metals,2000,111-112:331.
  • 3Zhang F,Wang Y,Yang X,et al.Voltage-dependent recombination region movement in orgainic light-emitting diodes based on a europium complex-doped polymer[J].J.Luminescence,2000,87-89:1 149-1 151.
  • 4Wang Y,Teng F,Xu Z,et al.Trap effect of an ultrathin DCJTB layer in organic light-emitting diodes[J].Materials Chemistry and Phys.,2005,92(1):291.

同被引文献11

引证文献1

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部