一维Co-CdSe异质结纳米线的磁耦合及双功能性研究  

Magnetic Coupling and Bifunctional Properties of One-Dimensional Co-CdSe Heterojunction Nanowires

作　　者：申豪哲 苏轶坤[1] 汤皎宁[1] Shen Haozhe;Su Yikun;Tang Jiaoning(College of Materials,Shenzhen University,Shenzhen 518060,China)

机构地区：[1]深圳大学材料学院,广东深圳518060

出　　处：《稀有金属材料与工程》2020年第11期3914-3918,共5页Rare Metal Materials and Engineering

基　　金：国家自然科学基金项目(51742165)。

摘　　要：利用多孔阳极氧化铝模板辅助法,在Co电解液和CdSe电解液的双槽体系中用直流电沉积法交替沉积合成一维多段Co-CdSe金属-半导体异质结纳米线。分别用扫描电子显微镜(SEM)、X射线衍射(XRD)仪、振动样品磁强计(VSM)、紫外可见分光光度计(UV-Vis)以及光致发光光谱仪(PL)对异质结纳米线的形貌、结构、磁学及光学特性进行表征。结果表明,Co-CdSe异质结纳米线分层明显,且同时以面心立方结构存在。Co-CdSe异质结纳米线拥有与单质金属Co纳米线相同的磁矫顽力,同时,异质结纳米线也表现优异的光学性能。One-dimensional multi-segment Co-CdSe metal-semiconductor heterojunction nanowires were alternately deposited by direct current electrodeposition in a two-cell system of Co electrolyte and CdSe electrolyte by porous anodized aluminum template assisted method.The morphology,structure,magnetic and optical properties of the heterojunction nanowires were characterized by scanning electron microscopy(SEM),X-ray diffractometry(XRD),vibrating sample magnetometer(VSM),UV-visible spectrophotometer(UV-Vis)and photoluminescence spectroscopy(PL).The results show that the Co-CdSe heterojunction nanowires are well layered and exist in a face-centered cubic structure.The Co-CdSe heterojunction nanowires have the same magnetic coercivity as the elemental metal Co nanowires,and simultaneously,the heterojunction nanowires exhibit the excellent optical properties.

关 键 词：电沉积 Co-CdSe异质结纳米线 矫顽力 

分 类 号：O646[理学—物理化学] O614.812[理学—化学]