Phenethylammonium bromide addition for high luminance and efficiency perovskite light-emitting diodes

Xuefeng Peng; Hualin Zheng; Ting Zhang; Xiaohui Yang; Shibin Li

doi:10.1117/12.2674127

9 March 2023 Phenethylammonium bromide addition for high luminance and efficiency perovskite light-emitting diodes

Xuefeng Peng, Hualin Zheng, Ting Zhang, Xiaohui Yang, Shibin Li

Proceedings Volume 12600, International Conference on Optoelectronic Materials and Devices (ICOMD 2022); 1260008 (2023) https://doi.org/10.1117/12.2674127
Event: 2022 International Conference on Optoelectronic Materials and Devices, 2022, Chongqing, China

Abstract

The luminance and efficiency of perovskite light-emitting diodes are strongly limited by the strongly nonradiative losses in the light emission layers. Herein, we report that phenethylammonium bromide addition can effectively modify the perovskite layer with efficient light emission, which is related to the morphology improvement induced defect healing-, dielectric and size confinement-, or defect passivation-suppressed nonradiative losses. The modified perovskite lightemitting diodes show a maximum luminance of 61800 cd m-2 and current efficiency of 41.8 cd A^-1.

Citation Download Citation

Xuefeng Peng, Hualin Zheng, Ting Zhang, Xiaohui Yang, and Shibin Li "Phenethylammonium bromide addition for high luminance and efficiency perovskite light-emitting diodes", Proc. SPIE 12600, International Conference on Optoelectronic Materials and Devices (ICOMD 2022), 1260008 (9 March 2023); https://doi.org/10.1117/12.2674127

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