Luo Zhixun, Yang Wensheng, Peng Aidong, Ma Ying, Fu Hongbing, Yao Jiannian
Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.
J Phys Chem A. 2009 Mar 19;113(11):2467-72. doi: 10.1021/jp810387w.
Anodic aluminum oxide (AAO) templates were employed to filtrate and assemble Au nanoparticles by the pressure difference method. It was found that the colloidal Au nanoparticles can be uniformly arranged as nanonet assembly on the AAO surface. The net-assembled Au nanoparticles are clean and closely packed with nanochains. Taking fullerene C60/C70 as probe molecules, high-quality surface-enhanced Raman scattering (SERS) spectra were observed. The net-assembled Au nanoparticles even synchronously support the observation of surface-enhanced infrared absorption (SEIRA) spectra of the fullerene C60/C70. These results indicate that the AAO template filtrated with net-assembled Au nanoparticles is a highly active substrate for surface-enhanced spectroscopy.
采用阳极氧化铝（AAO）模板通过压差法过滤并组装金纳米颗粒。发现胶体金纳米颗粒可以作为纳米网组件均匀地排列在AAO表面。纳米网组装的金纳米颗粒干净且紧密地排列成纳米链。以富勒烯C60/C70为探针分子，观察到了高质量的表面增强拉曼散射（SERS）光谱。纳米网组装的金纳米颗粒甚至同步支持对富勒烯C60/C70的表面增强红外吸收（SEIRA）光谱的观察。这些结果表明，用纳米网组装的金纳米颗粒过滤的AAO模板是用于表面增强光谱的高活性基底。
