红外上转换材料CaS:Eu,Sm的制备  

PREPARATION OF INFRARED UP-CONVERSION MATERIAL CaS: Eu, Sm

作　　者：张希艳[1] 刘全生[1] 王晓春[1] 柏朝辉[1] 卢利平[1] 宣依昉[1] 

机构地区：[1]长春理工大学材料与化工学院,吉林长春130022

出　　处：《红外与毫米波学报》2005年第4期301-303,共3页Journal of Infrared and Millimeter Waves

基　　金：国家自然科学基金(50472027);吉林省自然科学基金(20040506-1)资助项目

摘　　要：采用碳还原法,制备了电子俘获型红外上转换材料(CaS:Eu,Sm).研究了反应机理、还原原理、红外上转换机理以及灼烧温度对 CaS晶格形成和发光性能的影响.样品的XRD测试结果表明, CaS:Eu,Sm为面心立方结构,样品的激发谱位于200～600nm,样品的荧光发射光谱是峰值分别位于567nm,606nm和630nm的宽带谱,上转换发光峰值位于625nm,上转换发光的光谱响应范围位于800～1600nm.Electron trapping infrared up-conversion material （CaS： Eu, Sin） was prepared with the carbon reducing method（CRM）. The reaction mechanism, reducing principle, infrared upconversion mechanism and effect of calcined temperature on the lattice formation of CaS and its optical properties were studied. XRD patterns of the samples indicate that C＇aS ： Eu, Sm is with face-center cubic structure. Excitation spectrum is within the range of 200 - 600nm. Fluorescence emission spectrum is a broadband spectrum peaking at 567nm, 606nm and 63Onto respectively. The peak of the up-conversion emission luminescence spectrum is at 625nm. The wavelength response range of the up-conversion luminescence is located at 800 - 1600nm.

关 键 词：CaS:Eu Sm 碳还原法 红外上转换 电子俘获 

分 类 号：TQ422[化学工程]