4.7 Article

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

Journal

CHEMICAL COMMUNICATIONS
Volume 47, Issue 9, Pages 2520-2522

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c0cc05302c

Keywords

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Funding

  1. NSF of China [20973143, 91027009]
  2. National Basic Research Program of China (973 Program) [2007CB815303, 2009CB930703]
  3. Xiamen University [2010121020]
  4. NCETFJ
  5. HPC of Xiamen University

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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.

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