【Nanoscale】Light-controlled synthesis of gold nanoparticles using a rigid, photoresponsive surfactant
作者：Huang, Youju Kim, Dong-Hwan*
關鍵字：gold nanoparticles
論文來源：期刊
具體來源：Nanoscale, 2012, 4, 6312
發表時間：2012年
We report a new strategy for shape control over the synthesis of gold nanoparticles (AuNPs) by using a photoresponsive surfactant based on a modified seed growth method. Owing to photoresponsive properties of the azo group, the designed surfactant, N1,N3,N5-tris[(4[prime or minute]-azobenzene-4-sulphonic acid)phenyl]benzene-1,3,5-tricarboxamide, exhibits a distinctive molecular configuration under light leading to different growth processes of AuNPs. As a result, the blackberry-like, spherical AuNPs and multilayered Au plates were successfully prepared in high yield under visible and UV light. The size and morphological control of Au nanocrystals are described and the synthesized Au nanocrystals are evaluated for SERS applications.