Surface-enhanced Raman scattering of 4-aminobenzenethiol on gold: the concept of threshold energy in charge transfer enhancement.

Some threshold energy is required for 4-aminobenzenethiol to occupy the gold surface sites capable of leading to the appearance of surface-enhanced Raman scattering peaks via a charge transfer resonance enhancement mechanism.

[1]  S. Dong,et al.  Surface-enhanced Raman scattering of 4-aminothiophenol self-assembled monolayers in sandwich structure with nanoparticle shape dependence: Off-surface plasmon resonance condition , 2007 .

[2]  Pablo G. Etchegoin,et al.  Surface Enhanced Raman Scattering Enhancement Factors: A Comprehensive Study , 2007 .

[3]  Louis E. Brus,et al.  Single Molecule Raman Spectroscopy at the Junctions of Large Ag Nanocrystals , 2003 .

[4]  M. Ishikawa,et al.  Microscopic morphology and SERS activity of Ag colloidal particles , 2002 .

[5]  M. Moskovits.  Surface-enhanced spectroscopy , 1985 .

[6]  Inhyung Lee,et al.  Chemical lithography by Ag-nanoparticle-mediated photoreduction of aromatic nitro monolayers on Au. , 2004, Langmuir : the ACS journal of surfaces and colloids.

[7]  Zhong-Qun Tian,et al.  When the signal is not from the original molecule to be detected: chemical transformation of para-aminothiophenol on Ag during the SERS measurement. , 2010, Journal of the American Chemical Society.

[8]  De‐Yin Wu,et al.  Surface Catalytic Coupling Reaction of p-Mercaptoaniline Linking to Silver Nanostructures Responsible for Abnormal SERS Enhancement: A DFT Study , 2009 .

[9]  Kwan Kim,et al.  Photolytic reduction of 4-nitrobenzenethiol on Au mediated via Ag nanoparticles , 2003 .

[10]  R. Birke,et al.  A unified view of surface-enhanced Raman scattering. , 2009, Accounts of chemical research.

[11]  Steven R. Emory,et al.  Probing Single Molecules and Single Nanoparticles by Surface-Enhanced Raman Scattering , 1997, Science.

[12]  Hongxing Xu,et al.  Spectroscopy of Single Hemoglobin Molecules by Surface Enhanced Raman Scattering , 1999 .

[13]  S. Kawata,et al.  Experimental Identification of Chemical Effects in Surface Enhanced Raman Scattering of 4-Aminothiophenol† , 2010 .

[14]  Naoki Matsuda,et al.  Charge transfer resonance Raman process in surface-enhanced Raman scattering from p-aminothiophenol adsorbed on silver: Herzberg-Teller contribution , 1994 .