Surface chemistry of near-unity emission quantum yield CsPbBr3 perovskite nanocrystals

Yang Ding; Zhuoming Zhang; Jeffrey Peng; Masaru Kuno

doi:10.1117/12.2647223

17 March 2023 Surface chemistry of near-unity emission quantum yield CsPbBr3 perovskite nanocrystals

Yang Ding, Zhuoming Zhang, Jeffrey Peng, Masaru Kuno

Proceedings Volume PC12437, Photonic Heat Engines: Science and Applications V; PC124370A (2023) https://doi.org/10.1117/12.2647223
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

Achieving condensed phase optical refrigeration requires near-unity emission quantum yields (QYs). Colloidal CsPbBr3 nanocrystals (NCs) are promising candidates in this respect given near unity QY-values, achieved by post-synthetic surface treatment with quaternary ammonium bromide ligands. The origin of these QY enhancements, however, is not understood. Systematic nuclear magnetic resonance studies of the organic ligand passivation of near unity QY CsPbBr3 NC surfaces are therefore conducted to better reveal their surface-ligand interactions.

Conference Presentation

Citation Download Citation

Yang Ding, Zhuoming Zhang, Jeffrey Peng, and Masaru Kuno "Surface chemistry of near-unity emission quantum yield CsPbBr3 perovskite nanocrystals", Proc. SPIE PC12437, Photonic Heat Engines: Science and Applications V, PC124370A (17 March 2023); https://doi.org/10.1117/12.2647223

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