铯铅卤钙钛矿量子点玻璃的稳定性研究进展  

Research Progress on the Stability of Cesium Lead Halide Perovskite Quantum Dots Glass

作　　者：牛璐玥 孙永昊 王慈 任晶[1,2] NIU Luyue;SUN Yonghao;WANG Ci;REN Jing(Key Laboratory of In-Fiber Integrated Optics of Ministry of Education,College of Physics and Optoelectronic Engineering,Harbin Engineering University,Harbin 150001,China;Key Laboratory of Photonic Materials and Devices Physics for Oceanic Applications,Ministry of Industry and Information Technology of China,College of Physics and Optoelectronic Engineering,Harbin Engineering University,Harbin 150001,China)

机构地区：[1]哈尔滨工程大学物理与光电工程学院,“纤维集成光学”教育部重点实验室,哈尔滨150001 [2]哈尔滨工程大学物理与光电工程学院,“海洋光子材料与器件物理”工业与信息化部重点实验室,哈尔滨150001

出　　处：《硅酸盐学报》2024年第8期2623-2633,共11页Journal of The Chinese Ceramic Society

基　　金：国家自然科学基金面上项目(52372003,52201008);核探测与核电子学国家重点实验室开放课题(SKLPDE-KF-202205);黑龙江省自然科学基金重点项目(ZD2023E004)。

摘　　要：铯铅卤(CsPbX_(3))钙钛矿量子点(PQDs)在光电领域取得了突破性进展,然而其在实际应用中一直受到稳定性差的困扰。将PQDs嵌入到结构紧密、性能稳定的惰性无机玻璃基体中,形成“量子点玻璃”复合材料,在保留PQDs优异发光性能的同时,不但巧妙地解决PQDs稳定性差的“致命”缺点,而且有望进一步挖掘玻璃的优势,如拉制光纤,制备新型光电功能材料,在开发综合性能优异的光电器件方面具有很好的潜力。本文综述了目前CsPbX_(3) PQDs玻璃的制备方法、析晶和发光机理,重点介绍了量子点玻璃在实际应用中面临的稳定性问题,包括在温度、光照和湿度等环境条件下的稳定性及重要研究进展,并对其未来研究中应重点关注的问题提出了展望。Cesium lead halide perovskite quantum dots(CsPbX_(3))have emerged as pivotal materials in the realm of optoelectronics,owing to their exceptional properties.However,traditional synthesis methods often yield quantum dots(QDs)with poor durability,rendering them susceptible to degradation under various environmental impact such as light,oxygen,humidity,and high temperatures.This inherent instability hampers their long-term viability across diverse applications.1)Stability Challenges and Solutions When exposed to adverse conditions,colloidal CsPbX_(3)QDs swiftly deteriorate,leading to a decline in their photoluminescence(PL)emission performance.To mitigate this issue,diverse strategies have been devised,focusing on enhancing the long-term durability of QDs.Such as surface ligand modification,mesoporous structure encapsulation,core-shell structures,and composition engineering:Despite these advancements,challenges persist,particularly regarding the efficacy of surface protective layers.Existing methods often yield structures with insufficient density,leading to compromised long-term protection.Additionally,the stability of silicon dioxide,commonly utilized in wet chemical methods,remains a concern.The protective layer structure formed by these methods on the surface of PQDs is not dense,and the silicon dioxide prepared by wet chemical methods is also unstable,making the long-term protection of PQDs insufficient against external environmental factors.2)Quantum Dots Glass:A Solution for Long-Term Stability Inorganic glass is considered an excellent medium to prevent QDs degradation and improve their thermal stability.For example,there have been reports on the growth of II-VI and IV-VI QDs in glass,such as ZnO,ZnS,ZnSe,CdS,CdSe,PbS,and PbSe.Studies have found that glass has chemical and physical stability,as well as high mechanical strength,high temperature resistance,and chemical corrosion resistance.Glasses can prevent QDs from being eroded by the surrounding environment,allowing QDs to be evenly distributed in the glas

关 键 词：钙钛矿 铯铅卤 量子点玻璃 发光 

分 类 号：TQ171.1[化学工程—玻璃工业]