NaGdMgTeO_(6)∶Eu^(3+)荧光粉的光致发光及其多功能应用  

Photoluminescence and Multifunctional Applications of NaGdMgTeO_(6)∶Eu^(3+)Phosphors

作　　者：刘芳芳 代正忙 周薇薇 李荣青 夏峥嵘 王子峰 杨密爱 朱浩东 赵旺 LIU Fangfang;DAI Zhengmang;ZHOU Weiwei;LI Rongqing;XIA Zhengrong;WANG Zifeng;YANG Miai;ZHU Haodong;ZHAO Wang(Anhui Engineering Research Center for Photoelectrocatalytic Electrode Materials,School of Electrical Engineering,Huainan Normal University,Huainan 232038,China;Huainan No.6 High School,Huainan 232046,China)

机构地区：[1]安徽省光电催化电极材料工程研究中心,淮南师范学院电子工程学院,安徽淮南232038 [2]淮南第六中学,安徽淮南232046

出　　处：《发光学报》2025年第4期691-703,共13页Chinese Journal of Luminescence

基　　金：安徽省高校杰出青年科研项目(2022AH020087);安徽省自然科学基金(2108085MB53);校级研究项目(2024XJZD015,2024XS051,202410381015,S201410381029)。

摘　　要：通过高温固相法成功合成了NaGdMgTeO_(6)∶xEu^(3+)(x=0.1~1.0)红色荧光粉,并采用X射线衍射(XRD)、扫描电子显微镜(SEM)、漫反射光谱(DR)、光致发光光谱(PL)、电致发光光谱(EL)等多种测试手段对其结构形貌、光致发光特性进行了详细表征。实验结果表明,在397 nm紫外光激发下,NaGdMgTeO_(6)∶Eu^(3+)呈现出典型的Eu^(3+)特征红光发射;当Eu^(3+)掺杂浓度达到x=0.5时,样品展现出最佳发光性能,更高浓度的掺杂量会导致浓度猝灭。基于变温光谱,进一步探讨了NaGdMgTeO_(6)∶0.5Eu^(3+)荧光粉的热稳定性和作为荧光温度传感器的应用潜力,并据此计算得出了相关的关键参数指标。同时,通过对所制备LED器件的光电性能评估,初步展示了该材料在固态照明领域中的应用。此外,该材料还可用于潜指纹检测,有助于法医的鉴定。综上所述,NaGd⁃MgTeO_(6)∶Eu^(3+)作为一种多功能型材料,在多个领域展现出潜在的应用空间。The red phosphor NaGdMgTeO_(6)∶xEu^(3+)(x=0.1-1.0)was successfully prepared using the high-temper⁃ature solid-phase method.Comprehensive characterization of its structural,and photoluminescence properties was conducted using X-ray diffraction(XRD),scanning electron microscopy(SEM),diffuse reflectance spectroscopy(DR),photoluminescence spectroscopy(PL),and electroluminescence(EL)measurements.Under 397 nm UV ex⁃citation,NaGdMgTeO_(6)∶Eu^(3+)exhibits characteristic emission of Eu^(3+).The optimal doping concentration of Eu^(3+)was found to be x=0.5,beyond which higher concentrations result in concentration quenching.Temperature-dependent PL spectra were analyzed to investigate the thermal stability and potential application of NaGdMgTeO_(6)∶0.5Eu^(3+)as a temperature sensor.Key parameters related to its temperature sensing performance were calculated.Additionally,the photoelectrical properties of LED devices fabricated with this phosphor were evaluated,demonstrating its promising application in solid-state lighting.Furthermore,the material showed potential for latent fingerprint detection,indi⁃cating its multifunctional nature.In summary,NaGdMgTeO_(6)∶Eu^(3+)emerges as a versatile material with potential ap⁃plications across various fields.

关 键 词：NaGdMgTeO_(6) 发光 LED 温度传感 潜指纹显现 

分 类 号：O482.31[理学—固体物理]