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(Peer-Reviewed) Review of blue perovskite light emitting diodes with optimization strategies for perovskite film and device structure
Zongtao Li 李宗涛 ¹ ², Kai Cao 曹凯 ¹, Jiasheng Li 李家声 ¹ ², Yong Tang 汤勇 ¹, Xinrui Ding 丁鑫锐 ¹, Binhai Yu 余彬海 ¹
¹ National & Local Joint Engineering Research Center of Semiconductor Display and Optical Communication Devices, South China University of Technology, Guangzhou 510640, China
中国 广州 华南理工大学 半导体显示与光通信器件研发国家地方联合工程研究中心
² Foshan Nationstar Optoelectronics Company Ltd., Foshan 528000, China
中国 佛山 佛山市国星光电股份有限公司
Opto-Electronic Advances, 2021-02-28
https://doi.org/10.29026/oea.2021.200019
https://www.oejournal.org/article/doi/10.29026/oea.2021.200019
Abstract

Perovskite light emitting diodes (PeLEDs) have attracted considerable research attention because of their external quantum efficiency (EQE) of >20% and have potential scope for further improvement. However, compared to red and green PeLEDs, blue PeLEDs have not been extensively investigated, which limits their commercial applications in the fields of luminance and full-color displays.

In this review, blue-PeLED-related research is categorized by the composition of perovskite. The main challenges and corresponding optimization strategies for perovskite films are summarized. Next, the novel strategies for the design of device structures of blue PeLEDs are reviewed from the perspective of transport layers and interfacial layers. Accordingly, future directions for blue PeLEDs are discussed.

This review can be a guideline for optimizing perovskite film and device structure of blue PeLEDs, thereby enhancing their development and application scope.
Review of blue perovskite light emitting diodes with optimization strategies for perovskite film and device structure_1
Review of blue perovskite light emitting diodes with optimization strategies for perovskite film and device structure_2
Review of blue perovskite light emitting diodes with optimization strategies for perovskite film and device structure_3
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