Ligand engineering of perovskite quantum dots for efficient and stable solar cells

作     者：Shanshan Ding Mengmeng Hao Tongen Lin Yang Bai Lianzhou Wang Shanshan Ding;Mengmeng Hao;Tongen Lin;Yang Bai;Lianzhou Wang

作者机构：School of Chemical Engineering and Australian Institute of Bioengineering and NanotechnologyThe University of QueenslandBrisbaneQLD 4072Australia 

出 版 物：《Journal of Energy Chemistry》 (能源化学（英文版）)

年 卷 期：2022年第31卷第6期

页      面：626-648,I0018页

核心收录：

学科分类：0820[工学-石油与天然气工程] 07[理学] 08[工学] 070304[理学-物理化学(含∶化学物理)] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 

基　　金：the financial support from the Australian Research Council (ARC) Laureate Fellowship (FL190100139) the ARC Discovery Project (DP200101900) the CRC-P programs the funding support from the ARC through Discovery Early Career Researcher Award Fellowship (DE190101351) the Discovery Project (DP190102507) the financial support from University of Queensland Research Training Scholarship。 

主　　题：Perovskite quantum dots Ligand engineering Defect passivation Solar cells Stability 

摘      要：Lead halide perovskite quantum dots(PQDs) have recently emerged as promising light absorbers for photovoltaic application due to their extraordinary optoelectronic properties. Surface ligands are of utmost importance for the colloidal stability and property tuning of PQDs, while their highly dynamic binding nature not only impedes further efficiency improvement of PQD-based solar cells but also induces intrinsic instability. Tremendous efforts have been made in ligand engineering with good hopes to solve such challenging issues in the past few years. In this review, we first present a fundamental understanding of the role of surface ligands in PQDs, followed by a brief discussion and classification of various ligands that have the potential for improving the electronic coupling and stability of PQD solids. We then provide a critical overview of recent advances in ligand engineering including the strategies of in-situ ligand engineering, postsynthesis/-deposition ligand-exchange, and interfacial engineering, and discuss their impacts on changing the efficiency and stability of perovskite QD solar cells(QDSCs). Finally, we give our perspectives on the future directions of ligand engineering towards more efficient and stable perovskite QDSCs.