title: Growth of tetrahedral silver nanocrystals in aqueous solution and their SERS enhancement.
abstract: Silver nanocrystals with tetrahedral shapes and {111} faces have been synthesized by the light-driven growth method in an aqueous solution. The nanocrystals of T(d) symmetry were formed under the effect of tartrate and citrate as the structural-directing reagents at the appropriate stages of reaction. Further, the nanocrystals may be assembled through electrostatic interaction to develop large-scale particle surfaces with sharp vertexes, which can generate strong localized electromagnetic field for surface-enhanced Raman scattering (SERS) studies. Benzenethiol was used as the probe to evaluate their SERS enhancement, and enhancement factors of up to 10(6) are reached. As a kind of promising material, these novel nanocrystals will be applied in surface enhanced spectroscopy and plasmonics field.
authors: State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun, P. R. China.
authors: Ji
authors: J
authors: Zhou
authors: Jing
authors: J
authors: An
authors: Bin
authors: B
authors: Tang
authors: Shuping
authors: S
authors: Xu
authors: Yanxin
authors: Y
authors: Cao
authors: Bing
authors: B
authors: Zhao
authors: Weiqing
authors: W
authors: Xu
authors: Jingjing
authors: J
authors: Chang
authors: John R
authors: JR
authors: Lombardi