Thermal Analysis of Organic Light Emitting Diodes Based on Basic Heat Transfer Theory

We investigate the thermal characteristics of standard organic light-emitting diodes （OLEDs） using a simple and clear 1D thermal model based on the basic heat transfer theory. The thermal model can accurately estimate the device temperature, which is linearly with electrical input power. The simulat...

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Bibliographic Details
Published inChinese physics letters Vol. 32; no. 8; pp. 139 - 143
Main Author 张稳稳 吴朝新 刘迎文 董军 严学文 侯洵
Format Journal Article
LanguageEnglish
Published 01.08.2015
Subjects
Computer simulation
Devices
Electric power generation
Heat transfer
LED器件
Mathematical models
OLED
Organic light emitting diodes
Temperature gradient
Thermal analysis
仿真结果
传热理论
有机发光二极管
有机电致发光器件
温度梯度
热分析
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Summary:We investigate the thermal characteristics of standard organic light-emitting diodes （OLEDs） using a simple and clear 1D thermal model based on the basic heat transfer theory. The thermal model can accurately estimate the device temperature, which is linearly with electrical input power. The simulation results show that there is almost no temperature gradient within the OLED device working under steady state conditions. Furthermore, thermal analysis simulation results show that the surface properties （convective heat transfer coetficient and surface emissivity） of the substrate or cathode can significantly affect the temperature distribution of the OLED.
Bibliography:11-1959/O4
We investigate the thermal characteristics of standard organic light-emitting diodes （OLEDs） using a simple and clear 1D thermal model based on the basic heat transfer theory. The thermal model can accurately estimate the device temperature, which is linearly with electrical input power. The simulation results show that there is almost no temperature gradient within the OLED device working under steady state conditions. Furthermore, thermal analysis simulation results show that the surface properties （convective heat transfer coetficient and surface emissivity） of the substrate or cathode can significantly affect the temperature distribution of the OLED.
ZHANG Wen-Wen, WU Zhao-Xin, LIU Ying-Wen, DONG Jun, YAN Xue-Wen, HOU Xun（ 1 School of Electronic Engineering, Xi＇an University of Post ＆ Telecommunication, Xi＇an 710121 2Key Laboratory for Physical Electronics and Devices of the Ministry of Education, ＆ Key Laboratory of Photonics Technology for Information of Shaanxi Province, School of Electronic and Information Engineering, Xi＇an Jiaotong University, Xi＇an 710049 3 MOE Key Laboratory of Thermo-Fluid Science and Engineering, School of Energy and Power Engineering, Xi＇an Jiaotong University, Xi＇an 710049）
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/32/8/087201