一种新的表面增强拉曼散射活性基底——在阳极氧化铝模板上用激光脉冲沉积制备镍纳米线  

Pulsed Laser Deposition of Nickel Nanowires Using Anodic Aluminum Oxide Template:a New Active Substrate of Surface Enhanced Raman Scattering

作　　者：韩琳[1] 杨楠[1] 

机构地区：[1]新乡医学院生命科学技术系

出　　处：《新乡学院学报》2008年第1期42-44,共3页Journal of Xinxiang University

摘　　要：在制备出的阳极氧化铝模板上利用激光脉冲沉积法制得了直径为40nm～70nm的镍纳米线，将镍纳米线涂在栽玻片上作为基底，可以测得很强的苏丹红Ⅱ的表面增强拉曼散射光谱和尖端增强拉曼散射，扩大了表面增强拉曼散射的应用范围，也表明它存在着新的增强方式。同时，用密度泛函理论分别计算了苏丹红Ⅱ的拉曼散射与表面增强拉曼散射的频率。The nickel nanowires with about 40-70nm in diameter is prepared on the ordered anodic aluminum oxide template by PLD. And high quality Raman spectra of sudan is obtained on the glass covered with the nickel nanowires. On the nickel nanowires there are both surface enhanced Raman scattering and tip enhanced Raman scattering. The new observations not only enlarge the range of surface enhanced Raman scattering applications, but also imply a possible new enhancement mechanism. Otherwise the Raman and SERS frequencies of sudanⅡ molecule are calculated by using, respectively, DFT and B3PW91.

关 键 词：激光脉冲沉积 纳米线 表面增强拉曼散射 尖端增强拉曼散射 阳极氧化铝模板 

分 类 号：O469[理学—凝聚态物理]