Fabrication of Preaggregated Silver Nanoparticle Monolayer Film and Its Application to Surface-Enhanced Raman Scattering

Acta Chimica Sinica ›› 2009, Vol. 67 ›› Issue (6): 493-498. Previous Articles Next Articles

Original Articles

预聚集法制备单层银纳米粒子膜及其SERS活性研究

宋春元王著元杨晶张若虎谈学斌崔一平*

(东南大学先进光子学中心南京 210096)

投稿日期:2008-08-03 修回日期:2008-10-16 发布日期:2009-03-28
通讯作者: 崔一平

Fabrication of Preaggregated Silver Nanoparticle Monolayer Film and Its Application to Surface-Enhanced Raman Scattering

Song, Chunyuan Wang, Zhuyuan Yang, Jing Zhang, Ruohu
Tan, Xuebin Cui, Yiping*

(Advanced Photonics Center, Southeast University, Nanjing 210096, China)

Received:2008-08-03 Revised:2008-10-16 Published:2009-03-28
Contact: Cui, Yiping

Abstract

A novel solid substrate with high surface-enhanced Raman scattering activity was fabricated by preaggregated colloidal silver nanoparticles. The effect of preaggregation degree on the SERS activity of the substrate was studied by UV-Vis spectroscopy, TEM and SEM. It was found that the SERS activity was directly dependent on the preaggregation degree. This kind of substrate can be used as a highly sensitive SERS substrate with many advantages such as uniform nanoparticle distribution, homogeneous SERS activity, and wonderful enhancement effect. The excellent SERS activity of the substrate was proved by the distinct SERS spectra of Rhodamine 6G, 3-mercaptopropionic acid and 9-aminoaceridine hydrochloride monohydrate.

Key words: surface-enhanced Raman scattering substrate, preaggregate, silver nanoparticle, monolayer film, hot spot

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预聚集法制备单层银纳米粒子膜及其SERS活性研究

Fabrication of Preaggregated Silver Nanoparticle Monolayer Film and Its Application to Surface-Enhanced Raman Scattering

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