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Optimizing structure for constructing a highly efficient inverted top-emitting organic light-emitting diode with stable electroluminescent spectra

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【作者】 张小文； 许积文； 王华； 魏斌； 曾华荣； 蒋雪茵； 张志林；

【Author】 Zhang Xiaowen;Xu Jiwen;Wang Hua;Wei Bin;Zeng Huarong;Jiang Xueyin;Zhang Zhilin;Guangxi Key Laboratory of Information Materials,Guilin University of Electronic Technology;Key Laboratory of Advanced Displayand System Applications,Ministry of Education,Shanghai University;Key Laboratory of Inorganic Functional Materials and Devices,Shanghai Institute of Ceramics,Chinese Academy of Sciences;Key Laboratory of Advanced Display and System Applications,Ministry of Education,Shanghai University;

【机构】 Guangxi Key Laboratory of Information Materials,Guilin University of Electronic Technology； Key Laboratory of Advanced Display and System Applications,Ministry of Education,Shanghai University； Key Laboratory of Inorganic Functional Materials and Devices,Shanghai Institute of Ceramics,Chinese Academy of Sciences；

【摘要】 We demonstrate a highly efficient inverted top-emitting organic light-emitting diode (TOLED) having stable electroluminescent spectra and color coordination with variation of viewing angles by simply tuning the resonance wavelength corresponding to the free emission of the emitter. Using a doped fluorescent emitting system,the inverted TOLED exhibits an enhanced maximum current efficiency of 19 cd/A and a power efficiency of 17 lm/W,which are much higher than those (11 cd/A and 5 lm/W) of the counterpart with normal structure,although both TOLEDs behave with similar stable electroluminescent spectra characteristics. The results indicate that we provide a simple and effective method of constructing an excellent inverted TOLED for potentially practical applications.

【Abstract】 We demonstrate a highly efficient inverted top-emitting organic light-emitting diode (TOLED) having stable electroluminescent spectra and color coordination with variation of viewing angles by simply tuning the resonance wavelength corresponding to the free emission of the emitter. Using a doped fluorescent emitting system,the inverted TOLED exhibits an enhanced maximum current efficiency of 19 cd/A and a power efficiency of 17 lm/W,which are much higher than those (11 cd/A and 5 lm/W) of the counterpart with normal structure,although both TOLEDs behave with similar stable electroluminescent spectra characteristics. The results indicate that we provide a simple and effective method of constructing an excellent inverted TOLED for potentially practical applications.

【关键词】 OLED； inverted structure； stable electroluminescent spectrum； microcavity effect；
【Key words】 OLED； inverted structure； stable electroluminescent spectrum； microcavity effect；
【基金】 Project supported by the National Natural Science Foundation of China(No.61077013);the Guangxi Natural Science Foundation(No.2012GXNSFBA053168);the China Postdoctoral Science Foundation(No.2012M521550);the Guangxi Key Laboratory of Information Materials,Guilin University of Electronic Technology(No.1110908-04-K)
  • 【文献出处】 Journal of Semiconductors ,半导体学报(英文版) , 编辑部邮箱 ,2014年02期
  • 【分类号】TN383.1
  • 【被引频次】3
  • 【下载频次】37
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