不同柠檬酸剂量下Ce掺杂KYF纳米晶的发光性能研究  

Study on the Luminescent Properties of Ce-doped KYF Nanocrystals at Different Citric Acid Doses

作　　者：何韦毅 刘干 袁文 丁伯林 徐家跃 田甜 HE Weiyi;LIU Gan;YUAN Wen;DING Bolin;XU Jiayue;TIAN Tian(School of Materials Science and Engineering,Shanghai Institute of Technology,Shanghai 201418,China;Jiangsu Technology Innovation Research Institute for Transportation Safety Co.,Ltd.,Nanjing 210001,China;Chuzhou Saikang Transportation Technology Co.,Ltd.,Chuzhou 239200,China)

机构地区：[1]上海应用技术大学材料科学与工程学院,上海201418 [2]江苏科创交通安全产业研究院有限公司,江苏南京210001 [3]滁州赛康交通科技有限公司,安徽滁州239200

出　　处：《中国照明电器》2019年第10期13-17,共5页China Light & Lighting

基　　金：国家自然科学基金(61605116,51972208,51572175);上海应用技术大学专项项目(3321NH160003);江苏省博士后科研资助计划(1501131C);上海建筑防水材料工程技术研究中心(18DZ2253200)

摘　　要：采用水热法制备KY3F10(KYF)纳米晶,找到络合剂的最佳使用剂量,并研究其对Ce掺杂KY3F10(Ce∶KYF)纳米晶的发光性能。纳米晶XRD测试结果表明制备出了一系列纯相的Ce∶KYF;在291 nm紫外光激发下,纯KYF可形成中心波长为360 nm的宽峰发射,源于缺陷发光。当钇与柠檬酸摩尔比值为1∶0.5时,Ce∶KYF纳米晶具有最强发光强度。色坐标研究结果表明6个不同柠檬酸剂量的Ce∶KYF纳米晶发光性能稳定,可实现稳定的蓝紫光发射。KY3F10(KYF) nanocrystals were prepared by hydrothermal method, and the optimum dosage of complexing agent was found. The luminescent properties of Ce-doped KY3F10(Ce∶ KYF) nanocrystals were studied. The XRD results show that a series of pure phase Ce∶ KYF have been prepared. Under the excitation of 291 nm ultraviolet light, pure KYF can form a broad peak emission with a central wavelength of 360 nm, which originates from defect luminescence. When the molar ratio of yttrium to citric acid is 1∶0.5, Ce∶ KYF nanocrystals have the strongest luminescence intensity. The results of color coordinate study show that the luminescence properties of Ce∶KYF nanocrystals with 6 different citric acid doses are stable and stable blue-violet emission can be achieved.

关 键 词：KY3F10 纳米晶 缺陷 发光 

分 类 号：TQ422[化学工程]