氧化锡纳米线的拉曼光谱和光致发光光谱研究  

Study on Raman Spectra and Photoluminescence of SnO_2 Nanowires

作　　者：周建新[1] 王晓宇[1] 陈强[1] 朱克荣[1] 邓昱[1] 尹真[1] 张明生[1] 

机构地区：[1]南京大学固体微结构物理实验室和现代分析中心,南京210093

出　　处：《光散射学报》2006年第3期205-208,共4页The Journal of Light Scattering

基　　金：国家自然科学基金资助课题(10374047;10174034)

摘　　要：用表面限制剂对水热法生成的前驱物加以限制生长的方法成功制备了氧化锡纳米线结构,TEM和HRTEM的结果表明该纳米线由沿[001]方向生长的氧化锡单晶组成,纳米线直径在5-10纳米、长度100-500纳米。利用拉曼光谱和发光光谱对其生长过程和发光现象进行了详细的研究,结果表明,细长的氧化锡纳米线出现356、515、691 cm-1新的拉曼振动模以及600 nm较强的光致发光。SnO2 nanowires with diameters 5 - 10 nm and length 100 - 500 nm were prepared using a surfactant - mediated approach based on hydrothermal - synthesized precursor. TEM images show that the nanowires are uniform along [001 ] direction. Three new Raman lines at 358, 514 and 691 cm^-1 were recorded and a strong photoluminescence band located at -600 nm were observed at room temperature, notably different characters from the SnO2 bulk.

关 键 词：氧化锡纳米线 拉曼光谱 光致发光光谱 

分 类 号：O657.37[理学—分析化学]