【摘要】 观察了吡啶和花菁染料D1吸附在掺杂HCOOˉ的AgBr胶体上的表面增强喇曼光谱。与吸附在未掺杂的AgBr胶体表面的增强喇曼光谱相比较 ,掺杂了HCOOˉ的AgBr胶体表面具有喇曼超增强效应。HCOOˉ的双电子转移作用导致AgBr胶体中Ag+n 簇的增加是产生喇曼超增强效应的主要原因 ,符合化学增强机制。更多还原

【Abstract】 The Surface-Enhanced Raman Scattering (SERS) of pyridine, cyanine dyes D 1 adsorbed on AgBr colloid doped with HCOO ˉ were studied Compared with the SERS on undoped AgBr colloid the super enhancement effect was found The increasing of Ag + n number was thought as the main cause to the super SERS,which in accordance with chemical enhancement mechanism更多还原