摘要
A new method for preparing SERS-active substrate was reported. The prefabricated silver substrate was immersed into the mixture of silver enhancer and initiator for several seconds and then rinsed by tridistilled water. The measurements of the UV-Vis adsorption spectra and AFM show that the average particle size increases with increasing the immersing time. The optimum immersing time is 20 s. Furthermore, the measurements of the SERS spectra of BPENB indicate that such substrate could be kept active for more than 90 d.
A new method for preparing SERS-active substrate was reported. The prefabricated silver substrate was immersed into the mixture of silver enhancer and initiator for several seconds and then rinsed by tridistilled water. The measurements of the UV-Vis adsorption spectra and AFM show that the average particle size increases with increasing the immersing time. The optimum immersing time is 20 s. Furthermore, the measurements of the SERS spectra of BPENB indicate that such substrate could be kept active for more than 90 d.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2003年第11期2092-2094,共3页
Chemical Journal of Chinese Universities
基金
国家自然科学基金 (批准号 :2 0 2 73 0 2 2
2 0 173 0 19)
国家"863"高技术项目 (批准号 :2 0 0 2 A A3 0 2 612 )资助
