Raman-STM联用系统及其初步实验  

A Combined System of Raman-STM and Preliminary Tests

作　　者：田中群[1] 李五湖[1] 穆纪千 毛秉伟[1] 卓向东[1] 王铎[1] 颜恩柔 郑炜[2] 陈捷光[2] 

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]厦门大学科学仪器系,厦门361005

出　　处：《物理化学学报》1994年第12期1062-1065,共4页Acta Physico-Chimica Sinica

基　　金：国家教委优秀年轻教师基金

摘　　要：A combined system of Raman spectroscopy and STM has been set up, which enables the two techniques to in-situ study electrochemical interfaces simultaneously, An optical fiber head carrying one excitation fiber and five collection fibers can be adjusted to approach to an advanced originally designed STM unit so that the STM tip above the sample electrode are surrounded by the sir fibers. The strong thermal interface by the laser illumination was avoided with the short acquisition time for SERS measurements by using optical multichannel analyzer. In-situ SERS spectrum of SCN- adsorbed on Ag electrode surface has been simultaneously recorded during STM imaging. The STM imaging taken before, during and after the SERS measurements have drifted from each other within 5%, which shows that the combined system is of satisfied over all stability.A combined system of Raman spectroscopy and STM has been set up, which enables the two techniques to in-situ study electrochemical interfaces simultaneously, An optical fiber head carrying one excitation fiber and five collection fibers can be adjusted to approach to an advanced originally designed STM unit so that the STM tip above the sample electrode are surrounded by the sir fibers. The strong thermal interface by the laser illumination was avoided with the short acquisition time for SERS measurements by using optical multichannel analyzer. In-situ SERS spectrum of SCN- adsorbed on Ag electrode surface has been simultaneously recorded during STM imaging. The STM imaging taken before, during and after the SERS measurements have drifted from each other within 5%, which shows that the combined system is of satisfied over all stability.

关 键 词：R-S联用系统 散射谱 固液界面 电化学 

分 类 号：O657.37[理学—分析化学]