稀土卤化物/离子液体软发光材料的合成及其发光性能研究  

Study on Synthesis and Luminescent Properties of Rare Earth Halide/Ionic Liquid Soft Luminescent Material

作　　者：李倩倩 李凌燕 章政 李嫚 潘建国[1] 潘尚可[1] LI Qian-qian;LI Ling-yan;ZHANG Zheng;LI Man;PAN Jian-guo;PAN Shang-ke(Key Laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province,School of Materials Science & Chemical Engineering,Ningbo University,Ningbo 315211,China)

机构地区：[1]宁波大学材料科学与化学工程学院浙江省光电探测材料及器件重点实验室,宁波315211

出　　处：《人工晶体学报》2019年第2期258-262,267,共6页Journal of Synthetic Crystals

基　　金：国家自然科学基金(61775108;61875096)

摘　　要：利用[Bmim][Br]为溶剂,合成了新型稀土发光软材料Ce∶[Bmim][LaBr_4]/[Bmim][Br]([Bmim][Br]=1-丁基-3-甲基咪唑溴),探讨了温度、原料配比等因素对稀土配合物Ce∶[Bmim][LaBr_4]合成的影响。室温下测量了Ce∶[Bmim][LaBr_4]/[Bmim][Br]的光致发光光谱、光致发射衰减时间、X射线激发发射光谱等,结果表明:在320 nm紫外光激发下,350～450 nm的区间内有两个发射峰,发射峰的峰值分别位于377 nm和406 nm,其光致发射衰减时间为10 ns和31 ns,并且X射线激发下,具有较宽的发射光谱。A new rare earth luminescent soft material Ce∶[Bmim][LaBr 4]/[Bmim][Br]([Bmim][Br]= 1-butyl-3-methylimidazolium bromide) was synthesized using [Bmim][Br] as solvent. The effects of temperature, raw material ratio and other factors on the synthesis of rare earth complex Ce∶[Bmim][LaBr 4] were discussed. The photoluminescence spectrum, photoluminescence decay time and X-ray excitation emission spectrum of Ce∶[Bmim][LaBr 4]/[Bmim][Br] were measured at room temperature. The results show that when it excited by 320 nm ultraviolet light, there are two emission peaks in the range of 350-450 nm, which positions are located at 377 nm and 406 nm, respectively. The photoluminescence decay times are 10 ns and 31 ns, and the X-ray excitation has a broad emission spectrum.

关 键 词：稀土配合物 离子液体 铈离子 稀土发光软材料 

分 类 号：O614.33[理学—无机化学]