发光学报2024，Vol.45Issue(6)：959-969,11.DOI:10.37188/CJL.20240017
新型应力发光材料Ca5Ga6O14:Sm3+制备及其性能
Preparation and Properties of a Novel Mechanoluminescent Material Ca5Ga6O14:Sm3+
摘要
Abstract
A novel Ca5-xGa6O14:xSm3+mechanoluminescent(ML)material was successfully prepared by high-tem-perature solid-state reaction method.The crystal structure,surface morphology,photoluminescence,ML properties and luminescence mechanism of Ca5-xGa6O14:xSm3+were investigated via X-ray diffraction(XRD),scanning elec-tron microscopy(SEM),diffuse reflection spectra,photoluminescence excitation and emission spectra,lumines-cence decay,ML spectra and thermoluminescence spectra.Under the excitation of 404 nm,the emission peaks at 562,599,642,715 nm are detected in Ca5-xGa6O14:xSm3+,corresponding to 4G5/2→6Hj(j=5/2,7/2,9/2,11/2)characteristic emission of Sm3+.With the increase of Sm3+content,the luminescence intensity first increases and then decreases,the optimal luminescence intensity is obtained at x=0.07 and the decay time decreases from 1.92 ms to 1.30 ms.Under the sliding friction,ML emission band is obtained in Ca5-xGa6O14:x Sm3+,and the ML intensity in-creases linearly with applied stress,indicating that the material has potential application in the field of stress sensors.关键词
应力发光/Ca5Ga6O14/Sm3+Key words
mechanoluminescence/Ca5Ga6O14/Sm3+分类
数理科学引用本文复制引用
王强,刘伟,杜玉松,李欢,张志军,饶光辉,程帅,赵景泰..新型应力发光材料Ca5Ga6O14:Sm3+制备及其性能[J].发光学报,2024,45(6):959-969,11.基金项目
广西科技基地和人才专项(2020AC18005) （2020AC18005）
广西研究生教育创新计划项目(YCSW2022267) （YCSW2022267）
广西中央引导地方科技发展基金(ZY22096009) （ZY22096009）
广西八桂学者基金资助项目Supported by Guangxi Science and Technology Base and Talent Special Project(2020AC18005) （2020AC18005）
Innovation Project of Guangxi Graduate Education(YCSW2022267) （YCSW2022267）
Central Government Guided Local Science and Technology Development Fund Project(ZY22096009) （ZY22096009）
Foundation for Guangxi Bagui Scholars （）
