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Blue Perovskite Light-emitting Diodes: from Material Preparation to Device Optimization
- Chinese Journal of Luminescence Vol. 41, Issue 8, Pages: 879-898(2020)
- 作者机构：
1.华北电力大学 新能源电力系统国家重点实验室, 北京 102206
2.北京化工大学 北京软物质科学与工程高精尖创新中心, 北京 100029
- 作者简介：
- 基金信息：National Natural Science Foundation of China
DOI：10.37188/fgxb20204108.0879
CLC： O482.31Published：2020-8，
Received：31 May 2020，
Accepted：19 June 2020
扫 描 看 全 文
Zhi-bin WANG, Xiao-dong ZHU, Hao-ran JIA, et al. Blue Perovskite Light-emitting Diodes: from Material Preparation to Device Optimization. [J]. Chinese Journal of Luminescence 41(8):879-898(2020)
Zhi-bin WANG, Xiao-dong ZHU, Hao-ran JIA, et al. Blue Perovskite Light-emitting Diodes: from Material Preparation to Device Optimization. [J]. Chinese Journal of Luminescence 41(8):879-898(2020) DOI： 10.37188/fgxb20204108.0879.
摘要
金属卤化物钙钛矿材料凭借其低成本、高色彩饱和度、高荧光量子产率、可调的发光波长和溶液加工等特点，在下一代平板显示和固体照明领域极具应用前景。得益于对钙钛矿材料的设计、器件结构的优化和发光机理的深刻认识，自2014年首次观察到室温下的钙钛矿电致发光现象以来，绿光、红光和近红外钙钛矿电致发光二极管（PeLED）的外量子效率（EQE）目前已迅速突破了20%。然而，作为三基色之一的蓝光PeLED发展较为缓慢，这严重制约了全彩色PeLED的发展。最近一年来，蓝光PeLED的效率增长显著，EQE已经超过10%。本文总结了蓝光钙钛矿材料的制备和器件结构的优化，并对未来蓝光PeLED发展方向和所面临的问题进行了讨论，以期促进蓝光PeLED的发展。
Abstract
Metal halide perovskite materials have great application potential in the next generation flat panel display and solid state lighting
due to their unique features such as low cost
high color saturation
high photoluminescence quantum yield
tunable emission and solution processing. Since the first observation of perovskite electroluminescence at room temperature in 2014
the external quantum efficiencies(EQEs) of green
red and near-infrared perovskite light-emitting diodes(PeLED) have rapidly exceeded 20% to date. Such rapid efficiency improvement can be ascribed to the continuous optimization of perovskite materials and device structures
as well as a deeper understanding of their luminescence mechanism. Compared with green
red and near-infrared PeLEDs
the development of blue PeLED is relatively slow
which seriously restricts the development of full-color PeLEDs. In the last year
the efficiency of blue PeLED has increased significantly
and the EQE has reached over 10%. In this review
we summarize the design and preparation of blue perovskite materials and the optimization strategies of device structure for high performance PeLEDs
and the development direction and problems of blue PeLED are discussed in the end.
关键词
蓝光发射钙钛矿发光二极管材料制备器件优化
Keywords
blue emissionperovskitelight-emitting diodesmaterial preparationdevice optimization
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