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Photon-driven charge transfer and photocatalysis of p-aminothiophenol in metal nanogaps: a DFT study of SERS

2011; Royal Society of Chemistry; Volume: 47; Issue: 9 Linguagem: Inglês

10.1039/c0cc05302c

1364-548X

De‐Yin Wu, Liu‐Bin Zhao, Xiumin Liu, Rong Huang, Yifan Huang, Bin Ren, Zhong‐Qun Tian,

Quantum Dots Synthesis And Properties

When p-aminothiophenol (PATP) is used as a probe molecule and adsorbs on silver and gold nanogaps, a significant change of relative SERS intensities can be observed. Our DFT calculations show that surface photocatalytic coupling reactions yield a new surface species of p,p′-dimercaptoazobenzene (DMAB) causing the significant change in the SERS spectra.