摘要
本文通过模板法制备了一系列不同孔径的氧化铝模板 ,并通过交流电向模板中沉积银而制成有序银纳米线阵列。以SCN- 作为探针分子 ,用H3PO4溶解模板并用共焦显微拉曼系统现场检测SERS信号。结果表明 ,SERS信号的强度随露出表面纳米线的长度的增加而变大 ,到一定程度后又逐渐减弱。
A series of alumina templates with different pore diameter were synthesized by template method, and silver was deposited into the template by AC deposition Using SCN - as the probe molecule, H 3PO 4 to dissolve the template and confocal Raman spectroscope to investigate SERS signal, we found that SERS intensity changes depending on the length of nanowires exposed to the surface This demonstrated that the maximum enhancement is dependent on the appropriate aspect ratio of the nanowires
出处
《光散射学报》
2001年第4期216-219,共4页
The Journal of Light Scattering
基金
国家自然科学基金 ( 2 990 30 0 9
2 98330 6 0 )
教育部重点项目 ( 991 77)
