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Proceedings Paper

The escaped and trapped emission in organic light-emitting devices
Author(s): Shixiong Liang; Zhaoxin Wu; Xuanke Zhao; Dawei Wang; Xun Hou
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Paper Abstract

The escaped and trapped emission of organic light-emitting diodes was investigated by an integrating sphere and a fiber spectrometer. It was found that the ratio of escaped emission to the escaped and trapped in the substrate emission is 71%. In order to explain our experimental results, we extended the half-space dipole model, in which the dipole radiation pattern is taken into account. The calculated escaped and trapped emission of devices agreed well with our experiments. Our experimental and theoretical results is expected to be an instruction to the optimization of device structures for improving the out-coupling efficiency.

Paper Details

Date Published: 15 November 2010
PDF: 8 pages
Proc. SPIE 7852, LED and Display Technologies, 78520O (15 November 2010); doi: 10.1117/12.870087
Show Author Affiliations
Shixiong Liang, Xi'an Jiaotong Univ. (China)
Zhaoxin Wu, Xi'an Jiaotong Univ. (China)
Xuanke Zhao, Xi'an Jiaotong Univ. (China)
Dawei Wang, Xi'an Jiaotong Univ. (China)
Univ. of Arkansas (United States)
Xun Hou, Xi'an Jiaotong Univ. (China)

Published in SPIE Proceedings Vol. 7852:
LED and Display Technologies
Gang Yu; Yanbing Hou, Editor(s)

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