Advancements in the Improvement of Optical Outcoupling Efficiency for Perovskite LEDs

Chenrun Liu; Bobo Li; Mingxia Qiu

doi:10.34133/adi.0045

journal article Jan 01, 2024

Advancements in the Improvement of Optical Outcoupling Efficiency for Perovskite LEDs

Chenrun Liu Bobo Li

Mingxia Qiu

Advanced Devices & Instrumentation Vol. 5 · American Association for the Advancement of Science (AAAS)

View at Publisher Save 10.34133/adi.0045

Abstract

In the past 10 years, the development of perovskite light-emitting diodes (PeLEDs) was fast. Due to the excellent properties of high brightness and color purity, multiple color emission, and cost-effective fabrication technology, PeLEDs have been very promising in semiconductor lighting and display applications. In an effort to achieve high-efficient PeLED devices, researchers have devoted themselves to explore and optimize the emitted materials and device structures. Among various research approaches, raising the optical outcoupling efficiency (

η
out

) of PeLED through light management strategies is very important for further promoting device performances, which is due to that approximately 80% of the photons generated internally are captured or worn out in different optical modes in the device. In this review, the latest researches on optical outcoupling regulations in PeLED are outlined, which mainly focus on photophysical properties and implementation methods. As the key part of this review, implementation strategies are classified into the optimization of characteristics of functional materials (refractive index, film thickness, anisotropy, and photon recovery) and adjustment of device architecture (patterned nanostructures, photonic crystals, metal nanostructures, and external couplers). Additionally, a prospect of the future directions and development trend for this research field is presented in order to achieve ultra-efficient PeLED and future commercial applications.

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Metrics

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Citations

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References

Details

Published: Jan 01, 2024
Vol/Issue: 5

Authors

C

Chenrun Liu

College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, People’s Republic of China.

B

Bobo Li

College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, People’s Republic of China.

M

Mingxia Qiu

College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, People’s Republic of China.

Funding

National Natural Science Foundation of China Award: 12304468

Special Project for Research and Development in Key areas of Guangdong Province Award: 2023ZDZX1022

Basic and Applied Basic Research Foundation of Guangdong Province Award: 2022A1515111002

Characteristic Innovation Foundation of Higher Education Institutions of Guangdong Province Award: 2022KTSCX116

Cite This Article

Chenrun Liu, Bobo Li, Mingxia Qiu (2024). Advancements in the Improvement of Optical Outcoupling Efficiency for Perovskite LEDs. Advanced Devices & Instrumentation, 5. https://doi.org/10.34133/adi.0045

Advancements in the Improvement of Optical Outcoupling Efficiency for Perovskite LEDs

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