
Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Renewable Energy Conversion and Storage Center (RECAST), College of Chemistry, Nankai University, 300071, Tianjin, People's Republic of China
Mingjian Yuan (yuanmj@nankai.edu.cn)
Published:30 April 2021,
Published Online:19 March 2021,
Received:06 December 2020,
Revised:28 January 2021,
Accepted:24 February 2021
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Zhang, L. et al. High-performance quasi-2D perovskite light-emitting diodes: from materials to devices. Light: Science & Applications, 10, 516-541 (2021).
Zhang, L. et al. High-performance quasi-2D perovskite light-emitting diodes: from materials to devices. Light: Science & Applications, 10, 516-541 (2021). DOI: 10.1038/s41377-021-00501-0.
Quasi-two-dimensional (quasi-2D) perovskites have attracted extraordinary attention due to their superior semiconducting properties and have emerged as one of the most promising materials for next-generation light-emitting diodes (LEDs). The outstanding optical properties originate from their structural characteristics. In particular
the inherent quantum-well structure endows them with a large exciton binding energy due to the strong dielectric- and quantum-confinement effects; the corresponding energy transfer among different
n
-value species thus results in high photoluminescence quantum yields (PLQYs)
particul
arly at low excitation intensities. The review herein presents an overview of the inherent properties of quasi-2D perovskite materials
the corresponding energy transfer and spectral tunability methodologies for thin films
as well as their application in high-performance LEDs. We then summarize the challenges and potential research directions towards developing high-performance and stable quasi-2D PeLEDs. The review thus provides a systematic and timely summary for the community to deepen the understanding of quasi-2D perovskite materials and resulting LED devices.
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