基于高温HF/H_(2)法的YF_(3)∶Yb^(3+),Er^(3+)上转换发光性能增强研究  

Enhancing the upconversion luminescence performance of YF_(3)∶Yb^(3+),Er^(3+)based on high-temperature HF/H_(2)method

作　　者：李翰 宋昱龙 姜迪 汤睿[1] 钱渊[1,2] Li Han;Song Yulong;Jiang Di;Tang Rui;Qian Yuan(Department of Molten Salt Chemical Engineering Technology,Shanghai Institute of Applied Physics,Chinese Academy of Sciences,Shanghai 201800;University of Chinese Academy of Sciences,Beijing 101408)

机构地区：[1]中国科学院上海应用物理研究所熔盐化学工程技术部,上海201800 [2]中国科学院大学,北京101408

出　　处：《化工新型材料》2024年第5期99-103,共5页New Chemical Materials

基　　金：国家重点研发计划项目(2021YFB3500903)。

摘　　要：近年来,稀土材料因其独特的上转换光致发光特性备受关注。采用共沉淀法制备了掺杂Yb^(3+)和Er^(3+)的YF_(3)上转换发光材料。为了提高晶体结晶度和消除氧杂质的影响,采用500℃高温和HF/H_(2)气氛进行脱水除氧处理。通过X射线衍射(XRD)、氧分析仪、红外吸收光谱和荧光光谱等手段进行全面表征。结果表明:经过HF/H_(2)气氛高温脱氧处理的样品具有更高的结晶度和更优异的发光性能,表现出更高的量子产率。揭示了氧杂质对YF_(3)∶Yb^(3+),Er^(3+)上转换发光材料性能的负面影响,而采用高温HF/H_(2)气氛处理是提高发光性能的有效途径,为类似发光材料的研究提供了新思路。In recent years,rare-earth materials have garnered significant attention due to their unique upconversion luminescent properties.Co-precipitation method was used to successfully prepare YF_(3)upconversion luminescent materials doped with Yb^(3+)and Er^(3+).In order to enhance crystal crystallinity and eliminate the impact of oxygen impurities,researchers innovatively employed a dehydration and deoxygenation treatment at 500℃in an HF/H_(2)atmosphere.Comprehensive characterization was conducted through various techniques,including XRD,oxygen analyzer,infrared absorption spectroscopy,and fluorescence spectroscopy.The results demonstrated that the samples treated with high-temperature deoxygenation in an HF/H_(2)atmosphere exhibited higher crystallinity and superior luminescent performance,displaying elevated quantum yields.The study unveiled the adverse effects of oxygen impurities on the performance of YF_(3)∶Yb^(3+),Er^(3+)upconversion luminescent materials,while application of high-temperature HF/H_(2)atmosphere treatment was an effective approach for improving luminescent performance,providing new insights for similar luminescent material researches.

关 键 词：上转换发光 氧杂质 氟化钇 脱水除氧 稀土掺杂 

分 类 号：O614.33[理学—无机化学]