Highly sensitive and uniform Ag nanostructures for surface-enhanced Raman spectroscopy (SERS) applications

被引:2
作者
Sakir, Menekse [1 ]
机构
[1] Erciyes Univ, Nanotechnol Applicat & Res Ctr ERNAM, TR-38039 Kayseri, Turkiye
关键词
GALVANIC REPLACEMENT; CATALYTIC DEGRADATION; THERMAL-CONDUCTIVITY; ORGANIC CONTAMINANTS; LASER-ABLATION; SILVER; FABRICATION; NANOPARTICLES; SCATTERING; SUBSTRATE;
D O I
10.1063/5.0172737
中图分类号
O59 [应用物理学];
学科分类号
摘要
The present investigation involves the in situ growth of Ag nanostructures (NSs) onto a rough Cu surface, accomplished through a cost-effective and straightforward fabrication process. The inherent characteristics of the Cu surface contribute to a certain degree of a surface-enhanced Raman spectroscopy (SERS) signal. Upon integration with Ag NSs, the Cu surface serves as an exceptionally sensitive and consistently uniform substrate for surface-enhanced Raman spectroscopy. Notably, a singular substrate accommodates the simultaneous detection of four distinct probe molecules. Subsequent SERS analyses of Ag NSs on Cu were executed under varying laser power conditions. Intriguingly, despite the escalation in laser power, no substantial shifts were discerned in the peak positions corresponding to the probe molecules. Consequently, it can be inferred that, for investigations where peak position shifts hold significance, the utilization of a thermally conductive material in fabricating SERS-active substrates could confer notable advantages.
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页数:11
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