有机电致发光二极管散热机理模拟研究

林洋; 张静; 蔡苗; 魏斌; 杨连乔

doi:10.3788/fgxb20153607.0841

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有机电致发光二极管散热机理模拟研究

器件制备及器件物理 | 更新时间：2020-08-12

- 有机电致发光二极管散热机理模拟研究
- Numerical Study of Heat Dissipation Model for Organic Light-emitting Diodes
- 发光学报 2015年36卷第7期页码：841-845
- 作者机构：
  
  1. 上海大学新型显示技术及应用集成教育部重点实验室上海,200072
  2. 桂林电子科技大学机电工程学院,广西桂林,541004
- 作者简介：
- 基金信息：
  
  973国家重点基础研究发展计划(2011CB013100)();广西制造系统先进制造技术重点实验室(14-045-15-014k)资助项目()
- DOI：10.3788/fgxb20153607.0841
  中图分类号： TN383+.1
- 纸质出版日期：2015-7-3，
  
  网络出版日期：2015-5-8，
  
  收稿日期：2015-4-3，
  
  修回日期：2015-4-28，
扫描看全文
林洋, 张静, 蔡苗等. 有机电致发光二极管散热机理模拟研究[J]. 发光学报, 2015,36(7): 841-845

LIN Yang, ZHANG Jing, CAI Miao etc. Numerical Study of Heat Dissipation Model for Organic Light-emitting Diodes[J]. Chinese Journal of Luminescence, 2015,36(7): 841-845
林洋, 张静, 蔡苗等. 有机电致发光二极管散热机理模拟研究[J]. 发光学报, 2015,36(7): 841-845 DOI： 10.3788/fgxb20153607.0841.

LIN Yang, ZHANG Jing, CAI Miao etc. Numerical Study of Heat Dissipation Model for Organic Light-emitting Diodes[J]. Chinese Journal of Luminescence, 2015,36(7): 841-845 DOI： 10.3788/fgxb20153607.0841.

摘要

研究了有机电致发光二极管(OLEDs)工作过程中的生热与热传输机制。OLEDs器件产热由载流子复合产生

散热渠道主要由热辐射、对流两部分构成。基于传热学理论计算

发现发光亮度为1 000 cd/m

时

发光占输入功率的15%

热辐射占30%

热对流占55%

器件温度上升了39.4 ℃

并且计算结果与实验数据有良好的匹配。决定器件工作温度的因素有环境、材料、工作功率等。具有不同发光材料的OLEDs器件

其亮度衰减速率不同。

Abstract

The heat generation and heat transfer mechanisms of organic light-emitting diodes (OLEDs) were investigated. Heat is generated in the carrier recombination and then dissipated by thermal radiation and convection. Based on theoretical calculations of heat transfer

we find that at the case of the luminance of 1 000 cd/m

15% of the input power is converted to light

while 30% and 55% of the input power are converted to heat by thermal radiation and convection

respectively. The calculated temperature rise of the device is 39.4 ℃ which fits well with the measured value of 39.3 ℃. The factors affecting the temperature of OLEDs are ambient temperature

materials and input power. The brightness of OLEDs decays at different rates for different light-emitting materials.

关键词

有机电致发光二极管热辐射热对流

Keywords

organic light-emitting diodesthermal radiationthermal convection

references

Wang Z B, Helander M G, Qiu J, et al. Unlocking the full potential of organic light-emitting diodes on flexible plastic [J]. Nat. Photon., 2011, 5(12):753-757.

Chen M, Zhang L, Lin H, et al. Performance optimization of top-emitting OLED based PEN flexible substrate with microwave [J]. J. Optoelectron. Laser (光电子激光), 2012, 23(6):1063-1066 (in Chinese).

Ding L, Zhang F H, Li Y F, et al. High saturated blue phosphorscent organic lighting emitting devices [J]. J. Optoelectron. Laser (光电子激光), 2011, 22(11):1615-1620 (in Chinese).

Nakayama T, Hiyama K, Furukawa K, et al. Development of phosphorescent white OLED with extremely high power efficiency and long lifetime [J]. SID Symposium Digest Technical Papers, 2007, 38(1):1018-1021.

Zhou T X, Ngo T, Brown J J, et al. Stable and efficient electrophosphorescent organic light-emitting devices grown by organic vapor phase deposition [J]. Appl. Phys. Lett., 2005, 86(2):021107-1-3.

Ichikawa M, Kawaguchi T, Kobayashi K, et al. Bipyridyl oxadiazoles as efficient and durable electron-transporting and hole-blocking molecular materials [J]. J. Mater. Chem., 2006, 16(2):221-225.

Parker I D. Carrier tunneling and device characteristics in polymer light-emitting diodes [J]. J. Appl. Phys., 1994, 75(3):1656-1666.

Zhang X W, Xu J W, Wang H, et al. Optimizing structure for constructing a highly efficient inverted top-emitting organic light-emitting diode with stable electroluminescent spectra [J]. J. Semicond., 2014, 35(2):023002-1-3.

Book K, Bssler H, Nikitenko V R, et al. Transient behavior of charge carriers in multilayer organic light-emitting diodes: Experiment and theory [J]. Synth. Met., 2000, 111-112:263-267.

Song C L, Xu Y, Zhou H F, et al. Synthesis and properties of a novel type of red-light organic electroluminescence material [J]. Chin. J. Lumin.(发光学报), 2011, 32(3):285-289 (in Chinese).

Stefano T. Lighting technology: Time to change the bulb [J]. Nature, 2009, 459(3):312-314.

Zhou M J, Zhong G Y, He J, et al. Joule heating effect and organic decomposition in organic light-emitting diodes [J]. Chin. J. Semicond.(半导体学报), 2001, 22(8):1048-1051 (in Chinese).

Gustafsson G, Cao Y, Treacy G M, et al. Flexible light-emitting diodes made from soluble conducting polymers [J]. Nature, 1992, 357(6378):477-479.

Nenna G, Flaminio G, Fasolino T, et al. A study on thermal degradation of organic LEDs using IR imaging [J]. Macromol. Symp., 2007, 247(1):326-332.

Vamvounis G, Aziz H, Hu N X, et al. Temperature dependence of operational stability of organic light emitting diodes based on mixed emitter layers [J]. Synth. Met., 2004, 143(1):69-73.

Tsuji H, Oda A, Kido J, et al. Temperature measurements of organic light-emitting diodes by Stokes and anti-Stokes Raman scattering [J]. Jpn. J. Appl. Phys., 2008, 47(4):2171-2173.

Chung S, Lee J H, Jeong J, et al. Substrate thermal conductivity effect on heat dissipation and lifetime improvement of organic light-emitting diodes [J]. Appl. Phys. Lett., 2009, 94(25):253302-1-3.

Li Y T, Song X F, Chen J L, et al. Encapsulation's thermal characteristics for organic electroluminescent devices [J]. Acta Opt. Sinica (光子学报), 2011, 40(11):1630-1635 (in Chinese).

Yang L Q, Fu M J, Wei B, et al. Thermal analysis and thermal design of organic light-emitting diode [J]. Chin. J. Lumin.(发光学报), 2012, 33(6):624-627 (in Chinese).

Yang L Q, Wang L, Chen W, et al. Thermal analysis of organic light-emitting diode based on IR thermal imaging and transient electrical test [J]. J. Optoelectron. Laser (光电子激光), 2013, 24(7):1258-1262 (in Chinese).

Luo Y, Wei T W, Tang Z W, et al. The design research of single-chip high power LED radiator [J]. Appl. Mech. Mater., 2011, 103(9):219-224.

Zhang F T, Tang Z A, Gao R J, et al. Design and thermal analysis of gas pressure sensor with micro-hotplate [J]. Opt. Precision Eng.(光学精密工程), 2004, 12(6):598-602 (in Chinese).

Li J S, Wang T, Huang Z W. Temperature field analysis of stacked chip in turbulence model [J]. Modern Electron. Tech. (现代电子技术), 2014, 37(5):134-136 (in Chinese).

Wang W J, Lee T H, Choi J H, et al. Thermal investigation of GaN-based laser diode package [J]. IEEE Trans. Compon. Packag. Technol., 2007, 30(4):637-642.

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