简单立方结构硫化物Cd_(0.01)Co_(0.79)Cr_(0.8)S_2的制备及光学性能  

Study on the Preparation and Optical Properties of Simple Cublic Structure Sulfide Cd_(0.01)Co_(0.79)Cr_(0.8)S_2

作　　者：方必军[1] 贾楠[1] 丁建宁[1] 赵祥永[2] 罗豪甦[2] 

机构地区：[1]常州大学材料科学与工程学院,江苏常州213164 [2]中国科学院无机功能材料与器件重点实验室,上海201800

出　　处：《常州大学学报（自然科学版）》2016年第1期1-5,共5页Journal of Changzhou University：Natural Science Edition

基　　金：国家自然科学基金(51577015);江苏省高校自然科学研究重大项目(15KJA43002);江苏高校优势学科建设工程资助项目(苏学科办〔2014〕9)

摘　　要：通过溶剂热法制备Cd0.01Co0.79Cr0.8S2粉体。XRD、FESEM、TEM、纳米激光粒度分析表明制备的Cd0.01Co0.79Cr0.8S2是纳米级的粉体,颗粒细小、结晶良好,呈现简单立方结构。Cd0.01Co0.79Cr0.8S2粉体的比表面积为6.582 0m2/g,属于介孔材料。Cd0.01Co0.79Cr0.8S2在可见光区域透光率超过95%,禁带宽度为3.49 e V,电阻较大,体积电阻率为108!·mm,呈现较好的绝缘性。Cd0.01Co0.79Cr0.8S2在688 nm左右发射一个较强的红光带,显示了较好的荧光性能,有望在LED器件中获得应用。Cdo.olCoo.79Cro.sS2 nanopowder was prepared by solvent-thermal method. XRD, FESEM, TEM and Nano-particle laser test analysis indicated that the synthesized Cdo.olCoo.79Cro.sS2 exhibits well crystal- lized simple cubic structure with nano grain size. The specific surface area of Cd0.01 C00.79 Cro.8 S2 is 6. 582 0 m2/g, belonging to mesoporous materials. Cd0.01Co0. 79 Cr0.8 S2 exhibits high transmittance of more than 95 % in the visible light range accompanied by large band gap of 3.49eV, and high resistivity of 108Ω mm, indicating it＇s large insulation. Cd0.01 Co0.79 Cr0.8 S2 exhibits excellent fluorescence performance, which emits rather strong red light around 688nm and exhibits potential application in LED devices.

关 键 词：Cd0.011Co0.79Cr0.8S22 纳米粒子 透光率 荧光性能 

分 类 号：O482[理学—固体物理]