首页|Room-Temperature Persistent Luminescence in Metal Halide Perovskite Nanocrystals for Solar-Driven CO2 Bioreduction

Room-Temperature Persistent Luminescence in Metal Halide Perovskite Nanocrystals for Solar-Driven CO2 Bioreduction

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The rapid crystal growth of metal halide perovskite(MHP)nanocrystals inevitably leads to the genera-tion of abundant crystal defects in the lattice.Here,defects-mediated long-lived charges and accompa-nying room-temperature persistent luminescence are demonstrated to be a general phenomenon in MHP nanocrystals.Density functional theory calcula-tions suggest that the collaboration of Schottky and point defects enables upward cascading depletion for electron transfer in MHP nanocrystals,leading to the generation of long-lived photoexcited charges with lifetimes over 30 min.The excellent optical properties including the presence of long-lived charges,high charge separation efficiency,and broad absorption in the visible region make MHPs ideal candidates for both photocatalysis and photo-biocatalysis.The MHPs were further integrated with enzymes to construct a light-driven biosynthetic system for the selective production of fine chemicals from CO2 with solar energy.The biosynthetic system can produce formate with a quantum yield of 3.24％,much higher than that of plants(～0.2-1.6％).These findings will benefit the understanding of the op-toelectronic properties of MHPs and further provide opportunities for the development of biosynthetic systems for solar-to-chemical synthesis.

persistent luminescencenanoparticlesmetal halide perovskitesdefectsCO2 reduction

Jie Wang、Na Chen、Wenjie Wang、Zhiheng Li、Bolong Huang、Yanbing Yang、Quan Yuan

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College of Chemistry and Molecular Sciences,School of Microelectronics,Wuhan University,Wuhan 430072

Molecular Science and Biomedicine Laboratory(MBL),Institute of Chemical Biology and Nanomedicine,State Key Laboratory of Chemo/Biosensing and Chemometrics,College of Chemistry and Chemical Engineering,Hunan University,Changsha 410082

Department of Applied Biology and Chemical Technology,The Hong Kong Polytechnic University,Hung Hom,Kowloon,Hong Kong SAR 999077

国家自然科学基金国家自然科学基金国家重点研发计划largescale instrument and equipmentsharing foundation of Wuhan University

21925401219041002017YFA0208000

2023

10.31635/ccschem.022.202101694

中国化学会会刊(英文)

中国化学会会刊(英文)

CSCD
ISSN：
年,卷(期)：2023.5(1)
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