铜和金纳米线阵列上SCN-的表面增强拉曼光谱  

Surface Enhanced Raman Spectroscopic study of SCN - adsorbed at the Copper and Gold Nanowire Arrays

作　　者：姚建林[1] 潘谷平[2] 薛宽宏[2] 谢泳 汤儆[1] 任斌[1] 孙冬梅[2] 毛秉伟[1] 田中群[1] 

机构地区：[1]厦门大学固体表面物理化学国家重点实验室,化学系厦门361005 [2]南京师范大学化学系,南京210097

出　　处：《电化学》1999年第4期371-376,共6页Journal of Electrochemistry

基　　金：国家自然科学基金

摘　　要：Two_dimensional arrays of Cu and Au nanowires have been fabricated by template synthesis method, using the anodic aluminum oxidation films as the template. The morphology of the nanowire array was monitored by atomic force microscope (AFM) in the dissolution processes of the alumina film. Based on the probe molecule strategy, the spectral feature of SCN - adsorbed at the Cu and Au nanowires with different diameters has been investigated by surface enhanced Raman spectroscopy (SERS). The results reveal that the intensity of the SERS bands depends on the length of the exposed nanowires. The C≡N stretching vibration frequency (ν CN ) of SCN - up_shifted significantly with the increase of the diameter of the nanowires in the range of 15 nm to 50 nm. This interesting phenomenon is briefly discussed.Two_dimensional arrays of Cu and Au nanowires have been fabricated by template synthesis method, using the anodic aluminum oxidation films as the template. The morphology of the nanowire array was monitored by atomic force microscope (AFM) in the dissolution processes of the alumina film. Based on the probe molecule strategy, the spectral feature of SCN - adsorbed at the Cu and Au nanowires with different diameters has been investigated by surface enhanced Raman spectroscopy (SERS). The results reveal that the intensity of the SERS bands depends on the length of the exposed nanowires. The C≡N stretching vibration frequency (ν CN ) of SCN - up_shifted significantly with the increase of the diameter of the nanowires in the range of 15 nm to 50 nm. This interesting phenomenon is briefly discussed.

关 键 词：铜 金 纳米线阵列 硫氰根 SERS光谱 

分 类 号：O614.121[理学—无机化学] O614.123[理学—化学]