卤系钙钛矿纳米晶@多孔材料的研究进展  

Research progress on halide perovskite nanocrystals@porous materials

作　　者：范倩倩 刘蜜 李星瑶 马建中 FAN Qianqian;LIU Mi;LI Xingyao;MA Jianzhong(College of Bioresources Chemical and Materials Engineering,Shaanxi University of Science&Technology,Xi'an 710021,Shaanxi,China;Xi'an Key Laboratory of Green Chemicals and Functional Materials,Xi'an 710021,Shaanxi,China)

机构地区：[1]陕西科技大学轻工科学与工程学院,陕西西安710021 [2]西安市绿色化学品与功能材料重点实验室,陕西西安710021

出　　处：《精细化工》2025年第2期298-305,353,共9页Fine Chemicals

基　　金：国家自然科学基金面上项目(22378255);陕西省高校科协青年人才托举计划项目(20230469)。

摘　　要：卤系钙钛矿纳米晶因其带隙可调、光吸收能力强、载流子迁移率高等特性而被广泛应用于太阳能电池、光催化还原、发光二极管等领域,环境中水分、氧气、光照等因素会使其稳定性变差,这严重制约了其商业化应用。因此,如何提高钙钛矿纳米晶的稳定性已成为近年来的研究热点。利用多孔材料孔道结构对卤系钙钛矿纳米晶进行封装包覆,以此来隔绝外界环境,减少结构塌陷,是提高其稳定性的有效方法。该文介绍了卤系钙钛矿纳米晶@多孔材料的结构及特性;总结了金属有机框架材料、共价有机框架材料、介孔SiO_(2)包覆钙钛矿纳米晶的制备方法,如物理共混法、原位生长法、化学键作用法;综述了卤系钙钛矿纳米晶@多孔材料在光催化CO_(2)还原、LED发光二极管、荧光防伪及其他方面的应用进展;最后,指出了卤系钙钛矿纳米晶@多孔材料研究存在的问题,提出了进一步研究的方向。Halogenated perovskite nanocrystals have been widely used in solar cells,photocatalytic reduction,light-emitting diodes and other fields because of their adjustable band gap,strong light absorption capacity,and high carrier mobility.However,environmental factors such as water,oxygen and light make their stability poor,which seriously restricts their commercial application.Therefore,how to improve the stability of perovskite has become a research hotspot in recent years.The encapsulation of halide perovskite nanocrystals in porous material is considered an effective method for stability improvement.In this review,the structure and properties of halogenated perovskite nanocrystalline@porous materials were introduced.The preparation methods,such as physical blending method,in situ growth method and chemical bonding method,of metal-organic frame materials,covalent organic frame materials and mesoporous SiO_(2)coated perovskite nanocrystals were then summarized.The application progress of halogenated perovskite nanocrystalline@porous materials in photocatalytic CO_(2)reduction,LED light-emitting diode,fluorescence anti-counterfeiting and other fields was further reviewed.Finally,the existing problems and the future research directions of halogenated perovskite nanocrystalline@porous materials were discussed.

关 键 词：卤系钙钛矿纳米晶 多孔纳米材料 包覆结构 光催化 发光二极管 荧光防伪 应用 

分 类 号：TB383.1[一般工业技术—材料科学与工程] TB383.4