Optical Interference Effects by Metal Cathode in Organic Light-Emitting Diodes
WU Zhao-Xin, WANG Li-Duo, QIU Yong
Key Lab of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084
Optical Interference Effects by Metal Cathode in Organic Light-Emitting Diodes
WU Zhao-Xin;WANG Li-Duo;QIU Yong
Key Lab of Organic Optoelectronics & Molecular Engineering, Department of Chemistry, Tsinghua University, Beijing 100084
关键词 ：
78.60.Fi ,
42.25.Hz
Abstract ： The dependence of light intensities of organic light-emitting diodes (OLEDs) on the distance of emission zone to metal cathode is investigated numerically. The investigation is based on the half-space optical model that accounts for optical interference effects of metal cathode. We find that light intensities of OLEDs are functions of the distance of emission zone from the metal cathode because of the effect of interference of the metal cathode. This interference leads to an optimal location of emission zone in OLEDs for the maximum of light intensities. Optimal locations of emission zone are numerically shown in various emitting colour OLEDs with different metal cathodes and these results are expected to give insight into the preparation of high efficiency full colour or white light OLEDs.
Key words ：
78.60.Fi
42.25.Hz
出版日期: 2004-07-01
引用本文:
WU Zhao-Xin;WANG Li-Duo;QIU Yong. Optical Interference Effects by Metal Cathode in Organic Light-Emitting Diodes[J]. 中国物理快报, 2004, 21(7): 1370-1373.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2004/V21/I7/1370
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2004, Vol. 21 
