文献类型：期刊文献

英文题名：Facile Fabrication of a Silver Dendrite-Integrated Chip for Surface-Enhanced Raman Scattering

作者：Gu, Hai-Xin[1,2,3];Xue, Lin[3];Zhang, Yong-Feng[3];Li, Da-Wei[1,2];Long, Yi-Tao[1,2]

机构：[1]E China Univ Sci & Technol, Key Lab Adv Mat, Shanghai 200237, Peoples R China;[2]E China Univ Sci & Technol, Dept Chem, Shanghai 200237, Peoples R China;[3]Minist Publ Secur, Shanghai Fire Res Inst, Shanghai 200438, Peoples R China

年份：2015

卷号：7

期号：4

起止页码：2931

外文期刊名：ACS APPLIED MATERIALS & INTERFACES

收录：;EI(收录号：20150700513999);WOS:【SCI-EXPANDED(收录号:WOS:000349137300094)】；

基金：This research was supported by the Shanghai Municipal Natural Science Foundation (14ZR1409400, 14ZR1410800), the National Science Fund for Distinguished Young Scholars (21125522), a Shanghai Pujiang Program Grant of China (12JC1403500), and Fundamental Research Funds for the Central Universities (WB1113005).

语种：英文

外文关键词：SERS; silver dendrites; detection chip; copper substrate

摘要：A facile approach to fabricating a surface-enhanced Raman scattering (SERS)-active chip by integrating silver dendrites with copper substrate through a one-step process was explored. The structures of dendrites were synthesized and controlled by an AgNO3/PVP aqueous system, and the fabrication parameters amount of AgNO3/PVP and reaction time were systematically investigated. The optimized silver dendrites, closely aggregated on the surface of the copper chip, exhibited high SERS activity for detecting rhodamine 6G at a concentration as low as 3.2 x 10(11) M. Meanwhile, the prepared SERS-active chip displayed a high thermal stability and good reproducibility. Moreover, the potential application for analysis of polycyclic aromatic hydrocarbons was demonstrated by detection of fluoranthene at a low concentration of 4.5 x 10(10) M. This SERS-active chip prepared by the convenient and high-yield method would be a promising means for rapid detection under field conditions.