Comprehensive efficiency analysis of organic light-emitting devices

被引：18

作者：

Setz, Daniel S. ^{[1
]}

Schmidt, Tobias D. ^{[2
]}

Flaemmich, Michael ^{[3
]}

Nowy, Stefan ^{[2
]}

Frischeisen, Joerg ^{[2
]}

Krummacher, Benjamin C. ^{[1
]}

Dobbertin, Thomas ^{[1
]}

Heuser, Karsten ^{[1
]}

Michaelis, Dirk ^{[3
]}

Danz, Norbert ^{[3
]}

Bruetting, Wolfgang ^{[2
]}

Winnacker, Albrecht ^{[4
]}

机构：

[1] OSRAM Opto Semicond GmbH, OLED Lighting, D-93055 Regensburg, Germany

[2] Univ Augsburg, Inst Phys, D-86159 Augsburg, Germany

[3] Fraunhofer Inst Appl Opt & Precis Engn, D-07745 Jena, Germany

[4] Univ Erlangen Nurnberg, D-91058 Erlangen, Germany

来源：

JOURNAL OF PHOTONICS FOR ENERGY | 2011年 / 1卷

关键词：

organic light-emitting diodes; internal luminescence quantum efficiency; ELECTROLUMINESCENT DEVICES; DIODES; LAYER;

D O I：

10.1117/1.3528274

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We focus on the determination of the internal luminescence quantum efficiency of a green-emitting organic light-emitting diode (OLED). By considering different geometrical configurations of OLED thin-film stacks, we elucidate the role of the internal luminescence quantum efficiency of the emitter in the thin-film microcavity. Combining optical simulations with experimental results, a comprehensive efficiency analysis is performed. Here the electroluminescence of a set of OLEDs is characterized. Additionally, the devices are characterized using time-resolved photoluminescence measurements. The experimental data are analyzed using optical simulations. This analysis leads to a quantification of internal luminescence quantum efficiency and allows conclusions about competing mechanisms resulting in nonradiative recombination of charge carriers. (C) 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.3528274]

引用

页数：12

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