铜（I）基卤化物材料的结构调控、光学性质及光电器件应用研究进展
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关键词：铜（I）基卤化物材料；结构调控；自陷激子发光；光电器件；无铅材料中图分类号：0482.31 文献标识码：ADOI：10.37188/CJL.20250167 CSTR：32170.14.CJL.20250167
Abstract：Asan emerging classof lead-free optoelectronic materials，copper（I）-based halides materials have garneredsignificant atentioninthe fieldof optoelectronicdevices dueto their uniquephysicochemical properties， abundantstructuraldiversity，and excellntoptoelectronicperformance.Thisreviewsystematicallysummarizes the latestresearch progressoncopper（I）-based halides materials，starting from crystal structure design to in-depth discussionson their electronic characteristics，optical properties，and controlablesynthesis strategies.Studies reveal that through structural modulation（e.g.，A-sitecationselection，halogencompositionoptimization），copper（I）-based halides materialsnotonly inherit the high photoluminescencequantum yield and spectral tunabilityof lead-based perovskites，butalso significantly enhance material stability and environmentaladaptability，efectively addressing the toxicityand instabilityisues oflead-basedcounterparts.Thebroadband emisioncharacteristicsare widelyattributedto theself-trapped exciton luminescence mechanism，manifested bylarge Stokes shifts，long photoluminescence lifetime，and strong exciton-phononcoupling.This review introduces synthesis techniques forsingle crystals， nanocrystals，andthin films，and highlights breakthroughsinoptoelectronicapplications suchas light-emiting diodes（LEDs），photodetectors，and X-rayscintilators.For instance，the external quantum eficiencyof green LEDs based oncopper（I）-based halide materialshasexceeded 13% ，deep-ultraviolet-sensitivephotodetectorsbased on thin films demonstrate a high photo-responsivity of 17.8A⋅W-1 ，and C s3Cu2l5 scintillators exhibit a light yieldof79279 photonsper MeV.Looking ahead，bypreciselymodulating material dimensionality，optimizing device interface engineering，and exploring novel application scenarios，copper（I）-based halides are poised toadvanceoptoelectronic devices toward high efficiency，environmental sustainability，andmultifunctionalintegration.
KeyWords：copper（I）-based halides materials；structural modulation；self-trapped exciton emission；optoelectronicdevices;lead-freematerials
1引言
随着碳中和战略的推进和新型光电器件需求的激增，环境友好型光电材料在能源、信息、通讯等领域的应用日益广泛，成为推动现代科技进步的重要力量之一。（剩余44287字）
