单层
拉曼光谱
朗缪尔-布洛杰特电影
罗丹明6G
纳米线
材料科学
表面增强拉曼光谱
分子
朗缪尔
光谱学
纳米技术
罗丹明
拉曼散射
化学
物理化学
荧光
有机化学
光学
吸附
物理
量子力学
作者
Andrea R. Tao,Franklin Kim,Christian Heß,Joshua E. Goldberger,Rongrui He,Yugang Sun,Younan Xia,Peidong Yang
出处
期刊:Nano Letters
[American Chemical Society]
日期:2003-08-02
卷期号:3 (9): 1229-1233
被引量:1300
摘要
Langmuir−Blodgett technique was used to assemble monolayers (with areas over 20 cm2) of aligned silver nanowires that are ∼50 nm in diameter and 2−3 μm in length. These nanowires possess pentagonal cross-sections and pyramidal tips. They are close-packed and are aligned parallel to each other. The resulting nanowire monolayers serve as excellent substrates for surface-enhanced Raman spectroscopy (SERS) with large electromagnetic field enhancement factors (2 × 105 for thiol and 2,4-dinitrotoluene, and 2 × 109 for Rhodamine 6G) and can readily be used in ultrasensitive, molecule-specific sensing utilizing vibrational signatures.
科研通智能强力驱动
Strongly Powered by AbleSci AI