Preparation of gold colloid and its surface-enhanced Raman scattering properties

Author

Hu, Ling ; Chen, Zhenyi ; Chen, Na ; Zhang, Wei ; Zhu, Hongfei ; Liu, Shupeng ; Wang, Tingyun

Author_Institution

Key Lab. of Specialty Fiber Opt. & Opt. Access Networks, Shanghai Univ., Shanghai, China

fYear

2011

fDate

13-16 Nov. 2011

Firstpage

1

Lastpage

6

Abstract

Nanosized colloidal gold was prepared by the reduction of chloroauric acid with trisodium citrate in aqueous solution with microwave heating method. The diameters of gold nanoparticles were from 13 to 70 nm with the ratio of the trisodium citrate and chloroauric acid. With rhodamine 6G (R6G) as the detection molecules, the SERS properties of gold colloid were studied. Experimental results show that the gold colloids with 50-60nm particle diameters are excellent SERS substrates and sodium chloride (NaCl) can improve gold colloid´s surface-enhancement effect.

Keywords

colloids; gold; microwave heating; nanostructured materials; organic compounds; surface enhanced Raman scattering; Au; SERS properties; SERS substrates; aqueous solution; chloroauric acid; detection molecules; gold colloid; gold nanoparticles; microwave heating method; nanosized colloidal gold; rhodamine 6G; size 13 nm to 70 nm; sodium chloride; surface-enhanced Raman scattering properties; surface-enhancement effect; trisodium citrate; Abstracts; Educational institutions; R6G; SERS; gold nanoparticle; microwave heating; synthesis;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Photonics Conference and Exhibition, 2011. ACP. Asia

Conference_Location

Shanghai

ISSN

2162-108X

Print_ISBN

978-0-8194-8961-6

Type

conf

DOI

10.1117/12.905676

Filename

6210706