Abstract

Benzyl disulfide (BDS) can be adsorbed on HCl- or H2SO4-etched iron plate to form self-assembled film. The films were characterized by Fourier transform surface-enhanced Raman scattering spectroscopy. It is proposed that the bands in the range of 290 to 296 cm-1 in the spectra were due to the S-Fe bond. The disappearance of the S-S band, the large shifts of the C-S band, and the appearance of the Fe-S band from free BDS to the adsorbed molecule on the iron surface suggested that the BDS molecule was chemisorbed perpendicularly on the iron surface in the form of thiolate. The thiolates formed a film dotted with ferric hydroxide and silver cluster. The SERS effect of iron covered with BDS can be enhanced by the chemically deposited silver film, and the enhancing effect was related to the deposition time of silver.

Silver-decorated hierarchical cuprous oxide micro/nanospheres as highly effective surface-enhanced Raman scattering substrates

Shih-Yu Fu, Yu-Kuei Hsu, Mei-Hsin Chen, Chin-Jung Chuang, Ying-Chu Chen, and Yan-Gu Lin
Opt. Express 22(12) 14617-14624 (2014)

Enhanced Raman scattering of ZnO nanocrystals in the vicinity of gold and silver nanostructured surfaces

Alina Muravitskaya, Anna Rumyantseva, Sergei Kostcheev, Volodymyr Dzhagan, Oleksandr Stroyuk, and Pierre-Michel Adam
Opt. Express 24(2) A168-A173 (2016)

Excitation spectra of surface-enhanced Raman scattering on silver-island films

D. A. Weitz, S. Garoff, and T. J. Gramila
Opt. Lett. 7(4) 168-170 (1982)

Fabrication of silver dendrite fractal structures for enhanced second harmonic generation and surface-enhanced Raman scattering

Ziqiang Cheng, Yunhang Qiu, Zonglin Li, Dajie Yang, Sijing Ding, Guangling Cheng, Zhonghua Hao, and Ququan Wang
Opt. Mater. Express 9(2) 860-869 (2019)

Surface effects on Raman scattering from Sb deposited on Ag-island films

N. T. Liang, T. T. Chen, Hua Chang, Y. C. Chou, and Shou-yih Wang
Opt. Lett. 8(7) 374-376 (1983)