Review of blue perovskite light emitting diodes with optimization strategies for perovskite film and device structure

Zongtao Li; Kai Cao; Jiasheng Li; Yong Tang; Xinrui Ding; Binhai Yu

doi:10.29026/oea.2021.200019

Opto-Electronic Advances (Mar 2021)

Review of blue perovskite light emitting diodes with optimization strategies for perovskite film and device structure

Zongtao Li,
Kai Cao,
Jiasheng Li,
Yong Tang,
Xinrui Ding,
Binhai Yu

Affiliations

Zongtao Li: National Local Joint Engineering Research Center of Semiconductor Display and Optical Communication Devices, South China University of Technology, Guangzhou 510640, China
Kai Cao: National Local Joint Engineering Research Center of Semiconductor Display and Optical Communication Devices, South China University of Technology, Guangzhou 510640, China
Jiasheng Li: National Local Joint Engineering Research Center of Semiconductor Display and Optical Communication Devices, South China University of Technology, Guangzhou 510640, China
Yong Tang: National Local Joint Engineering Research Center of Semiconductor Display and Optical Communication Devices, South China University of Technology, Guangzhou 510640, China
Xinrui Ding: National Local Joint Engineering Research Center of Semiconductor Display and Optical Communication Devices, South China University of Technology, Guangzhou 510640, China
Binhai Yu: National Local Joint Engineering Research Center of Semiconductor Display and Optical Communication Devices, South China University of Technology, Guangzhou 510640, China

DOI: https://doi.org/10.29026/oea.2021.200019
Journal volume & issue: Vol. 4, no. 2
pp. 1 – 29

Abstract

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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.

Published in Opto-Electronic Advances

ISSN: 2096-4579 (Print)
Publisher: Institue of Optics and Electronics, Chinese Academy of Sciences
Country of publisher: China
LCC subjects: Science: Physics: Optics. Light
Website: http://www.oejournal.org/oea

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