卤化物钙钛矿敏感材料及其气敏传感应用  

Halide Perovskite Sensitive Materials and Their Gas Sensing Applications

作　　者：韩飞 王玲玲 陈伟 胡银[2] 章芬 邵伟 HAN Fei;WANG Lingling;CHEN Wei;HU Yin;ZHANG Fen;SHAO Wei(Institute of Energy Research,Jiangxi Academy of Sciences,Nanchang 330096,China;Institute of Applied Chemistry,Jiangxi Academy of Sciences,Nanchang 330096,China;School of Environmental and Chemical Engineering,NanchangHangkong University,Nanchang 330063,China)

机构地区：[1]江西省科学院能源研究所,南昌330096 [2]江西省科学院应用化学研究所,南昌330096 [3]南昌航空大学环境与化学工程学院,南昌330063

出　　处：《硅酸盐学报》2024年第1期292-304,共13页Journal of The Chinese Ceramic Society

基　　金：江西省自然科学基金(20232BAB202036);江西省博士后研究人员日常经费资助(2021RC30);江西省科学院省级科研院基础研究项目(2022YJC1002、2023YJC2020);江西省科学院省级科技计划项目(2023YSBG21008);江西省科学院博士后项目。

摘　　要：近年来,卤化物钙钛矿材料的光物理性质被充分研究,因其具有高电子迁移率和双极性电荷传输等特性,在室温气敏传感领域具有广阔的应用前景。本综述介绍了卤化物钙钛矿材料及其气敏传感应用,调研了卤化物钙钛矿气敏传感材料的研究现状,详细探讨了不同体系卤化物钙钛矿气敏传感器在NO_(x)、NH_(3)、H_(2)S、挥发性有机化合物(VOCs)以及其他有毒、有害气体检测方面的性能参数和传感机制,最后展望了卤化物钙钛矿气敏传感器的发展趋势,以期为进一步提高器件性能和拓展器件应用提供参考。Gas sensor can monitor the composition and content of trace toxic and harmful gases in environment.As the core of gas sensor technology,the performance of the sensor is closely related to the properties of the gas sensing materials.Recent work focused on development of novel sensitive materials with a large specific surface area,a high carrier mobility,a high catalytic activity,a wide measurement range and a good long-term stability to build high-performance gas sensors.Among them,halide perovskite materials are a potential option for gas-sensitive materials due to their advantages (i.e.,high room temperature carrier migration rate,sensitive surface properties,directly adjustable band gap and simple preparation).The toxic and harmful gas detection applications were analyzed and its sensing mechanism was clarified based on the advantages of halide perovskite in gas sensors.It is necessary to summarize the existing halide perovskite gas sensing materials.This review represented halide perovskite sensitive materials,discussed their working mechanisms in gas sensors,and summarized the application of halide perovskite gas sensors in NO_(x),NH_(3),H_(2)S and volatile organic compounds (VOCs).Halide perovskite gas sensors can be used for detection NO_(x) gas.Especially,MA-or Cs-based halide perovskite gas sensors with a bipolar charge transfer can achieve a high response/recovery speed at low operating temperatures and quickly and accurately detect NO_(2) and NO gas.Some recent work indicate that the Cs-based halide perovskite materials have better stabilities rather than the MA-based halide perovskite materials,so the as-prepared Cs-based halide perovskite gas sensors have better repeatability than the MA-based halide perovskite gas sensors.NH_(3) detection is another important application of halide perovskite gas sensor.This is because NH_(3) pollution seriously threatens human health and safety,and affects the sustainable development of ecological environment.Also,NH_(3) is also a metabolite of the human body and wid

关 键 词：卤化物钙钛矿 传感器 气敏性能 传感机制 

分 类 号：TN379[电子电信—物理电子学]