title: Surface-enhanced Raman scattering of 4-aminothiophenol adsorbed on silver nanosheets deposited onto cubic boron nitride films.
abstract: A simple method was found for the fabrication of silver nanosheets (AgNS) by the catalysis of gold nanoparticles (AuNP) on an amine-terminated cubic boron nitride (cBN) surface deposited on a Si(001) substrate in the presence of reductant. The morphology of the AgNS/AuNP/NH(2)-cBN/Si(001) sample was characterized by scanning electron microscopy and X-ray diffraction. The performance of the AgNS/AuNP/NH(2)-cBN/Si(001) sample as surface-enhanced Raman scattering (SERS) active substrate was evaluated by using 4-aminothiophenol (PATP) as the probe molecule. The SERS measurements showed that the maximum intensity was obtained on the AgNS/AuNP/NH(2)-cBN/Si(001) sample for 5 min silver deposition. Compared with the AuNP/NH(2)-cBN/Si(001) sample and a silver film/cBN/Si(001) prepared by the mirror reaction, the SERS signal of PATP was obviously improved on the above AgNS/AuNP/NH(2)-cBN/Si(001) film. The sensitivity and the stability of the AgNS/AuNP/NH(2)-cBN/Si(001) sample were also investigated.
authors.affiliation: Department of Chemistry, Shangqiu Normal University, PR China. ylzhou1981@yahoo.com.cn
authors.forename: Yanli
authors.initials: Y
authors.lastname: Zhou
authors.forename: Jinfang
authors.initials: J
authors.lastname: Zhi
authors.forename: Jianwen
authors.initials: J
authors.lastname: Zhao
authors.forename: Maotian
authors.initials: M
authors.lastname: Xu