银纳米粒子构筑树枝状微纳结构用于表面增强拉曼散射的研究

江汉大学学报（自然科学版） ›› 2013, Vol. 41 ›› Issue (1): 14-18.

银纳米粒子构筑树枝状微纳结构用于表面增强拉曼散射的研究

胡成龙，刘继延，彭湘红，刘学清，蔡少君

江汉大学光电化学材料与器件省部共建教育部重点实验室，化学与环境工程学院，湖北武汉 430056

出版日期:2013-02-12 发布日期:2013-12-27
作者简介:胡成龙（1983—），男，讲师，博士，研究方向：拉曼光谱在聚合物中的应用研究及其光电高分子材料的应用。

Silver Nano-particle Construct Dendritic Nanostructure for Surface Enhanced Raman Scattering

HU Cheng-long，LIU Ji-yan，PENG Xiang-hong，LIU Xue-qing，CAI Shao-jun

Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education，School of Chemistry and Enviromental Engineering，Jianghan University，Wuhan 430056，Hubei，China

Online:2013-02-12 Published:2013-12-27

摘要/Abstract

摘要： 通过简便的电化学沉积法制备出一种新颖的由树干、树枝和树叶构筑的树枝状银微纳结构。采用SEM和XRD等技术对所制备的银微纳结构进行结构表征，并结合其结构特点对树枝状银微纳结构的形成机制进行了初步探讨，制备的树枝状纳银具有极强的对称性的结构。单分子检测实验表明，由于树枝银的高纵横比、众多的间隙结构和纳米尺寸的单晶树叶状银等结构特点，所制备的树枝状银微纳结构作为表面增强拉曼散射（Surface-enhanced Raman Scattering，SERS）的基底具有优异的SERS活性，可用于超低浓度的单分子检测。

关键词: 表面增强拉曼散射（SERS）, 层级结构, 银微纳结构

Abstract: With facile electrochemical deposition method makes a new and unique dendritic silver nanostructure consist of trunk，branch and leaves. Adopts scaning electronic microscopy（SEM）and X-ray diffraction（XRD）to characterize the structure of silver nanostructure，combined with the structure feature to explore the formation mechanism of dendritic silver nanostructure，the dendritic nano silver has very strong symmetric construction. The unimolecule determination experiment show：because of the structure features of high aspect ratio，numerous interstital structure，single crystal leave shape silver with nano-size，the prepared dendritic silver nanostructure has excellent SERS（surface enhanced Raman Scattering）activity as SEMS substrate，it can be used for ultralow concentration unimolecule determination.

Key words: surface enhanced Raman scattering, hierarchy structure, silver nanostructure

中图分类号:

O641

胡成龙，刘继延，彭湘红，刘学清，蔡少君. 银纳米粒子构筑树枝状微纳结构用于表面增强拉曼散射的研究[J]. 江汉大学学报（自然科学版）, 2013, 41(1): 14-18.

HU Cheng-long，LIU Ji-yan，PENG Xiang-hong，LIU Xue-qing，CAI Shao-jun. Silver Nano-particle Construct Dendritic Nanostructure for Surface Enhanced Raman Scattering[J]. Journal of Jianghan University(Natural Science Edition), 2013, 41(1): 14-18.