Heat-induced morphological control of gold nanoparticle films for surface-enhanced Raman scattering (SERS) measurements

被引：11
作者：
Suzuki, Mototsup [1 ]
Niidome, Yasuro [1 ]
Yamada, Sunao [1 ]
机构：
[1] Kyushu Univ, Grad Sch Engn, Dept Appl Chem, Higashi Ku, Fukuoka 8128581, Japan
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2006年 / 284卷
关键词：
gold nanosphere; sedimentation; surface-enhanced Raman scattering (SERS); annealing; rhodamine; 6G;
D O I：
10.1016/j.colsurfa.2005.11.007
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Gold nanosphere (NS) films with different morphologies were prepared on glass substrates, by salting-out the colloidal solution with NaOH or NaClO4, and subsequent annealing at 100-150 degrees C. Surface-enhanced Raman scattering (SERS) spectra of rhodamine 6G (R6G) were measured by casting the R6G solution or by dipping into the R6G solution. Annealing at elevated temperatures certainly enhanced the SERS signal, though the optimum annealing temperature was different with the initial morphology of the NS film. The NS film prepared from NaClO4 and annealed at 100 degrees C gave the largest SERS signal in this study. (c) 2005 Elsevier B.V. All rights reserved.
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页码：388 / 394
页数：7
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