Perovskite LEDs: World Record of External Quantum Efficiency That ApproachThose of the Best-performing Organic LEDs
来源期刊：材料导报2019年第11期
论文作者：余昌敏
文章页码：1773 - 1774
摘 要：<正>Light-emitting diodes （LEDs）,which convert electricity to light,are widely used in modern society,for example,in lighting,flatpanel displays,medical devices and many other situations. Generally,the efficiency of LEDs is limited by nonradiative recombination （whereby charge carriers recombine without releasing photons） and light trapping[1]. In planar LEDs,such as organic LEDs,around 70%to 80%of the light generated from the emitters is trapped in the device[2],leaving considerable opportunity
余昌敏
Institute of Advanced Materials (IAM),Nanjing Tech University
摘 要：<正>Light-emitting diodes （LEDs）,which convert electricity to light,are widely used in modern society,for example,in lighting,flatpanel displays,medical devices and many other situations. Generally,the efficiency of LEDs is limited by nonradiative recombination （whereby charge carriers recombine without releasing photons） and light trapping[1]. In planar LEDs,such as organic LEDs,around 70%to 80%of the light generated from the emitters is trapped in the device[2],leaving considerable opportunity
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