中南民族大学学报（自然科学版）2025，Vol.44Issue(6)：754-762,9.DOI:10.20056/j.cnki.ZNMDZK.20250603
钙钛矿Sb-Cs2InBr5·H2O-硫醚扩链聚氨酯双色荧光转变材料的制备与性能
Preparation and properties of perovskite Sb-Cs2InBr5·H2O-thioether chain extended polyurethane dual-color fluorescent transition materials
摘要
Abstract
Indium-based halide perovskites represent a promising alternative to lead-based halide perovskites in environmentally friendly light-emitting diodes.However,they are often affected by poor durability and processability.Sb3+doped indium based perovskite(Sb-Cs2InBr5·H2O)was prepared by hydrothermal method,and a polymer coated perovskite bicolor fluorescence transition material(Sb-Cs2InBr5·H2O@DPU)was prepared by encapsulating with thioether chain extended polyurethane(DPU).The structure was characterized by Fourier transform infrared spectroscopy(FT-IR),nuclear magnetic resonance hydrogen spectroscopy(1H NMR),and X-ray diffraction(XRD).XRD confirmed that the structure of Sb-Cs2InBr5·H2O was fully retained in Sb-Cs2InBr5·H2O@DPU thin film.The results indicated that the composite thin film exhibited good orange fluorescence emission and excellent fluorescence quantum yield.Furthermore,dual color fluorescence transition could be achieved by controlling the dissociation of crystalline water.Sb-Cs2InBr5·H2O@DPU polymer composites exhibited excellent fluorescence and elastomeric behavior,making them suitable for stress sensors and stimuli-responsive materials for dynamic monitoring and flexible display.关键词
铟基卤化物钙钛矿/聚氨酯弹性体/荧光聚合物材料/双色荧光转变Key words
indium-based halide perovskite/polyurethane elastomer/fluorescent polymer material/dual-colour fluorescent transition分类
化学化工引用本文复制引用
雷易辉,许泽军,张道洪..钙钛矿Sb-Cs2InBr5·H2O-硫醚扩链聚氨酯双色荧光转变材料的制备与性能[J].中南民族大学学报（自然科学版）,2025,44(6):754-762,9.基金项目
湖北省自然科学基金资助项目(2024AFB697) （2024AFB697）
中南民族大学校级教研资助项目(JYX21049) （JYX21049）
中央高校基本科研业务费专项资金资助项目(CZQ23038,CZD24001) （CZQ23038,CZD24001）
