Surface-enhanced Raman scattering of silver-gold bimetallic nanostructures with hollow interiors

	Surface-enhanced Raman scattering of silver-gold bimetallic nanostructures with hollow interiors
	Wang YL ; Chen HJ ; Dong SJ ; Wang EK
刊名	journal of chemical physics
	2006
卷号	125 期号:4 页码:文献编号：044710
关键词	AIR-WATER-INTERFACE OPTICAL-PROPERTIES P-AMINOTHIOPHENOL AU NANOPARTICLES ISLAND FILMS SPECTROSCOPY SERS ELECTRODES PARTICLES DEPENDENCE
ISSN号	0021-9606
通讯作者	dong sj
中文摘要	surface-enhanced raman scattering (sers) activity of silver-gold bimetallic nanostructures (a mean diameter of similar to 100 nm) with hollow interiors was checked using p-aminothiophenol (p-atp) as a probe molecule at both visible light (514.5 nm) and near-infrared (1064 nm) excitation. evident raman peaks of p-atp were clearly observed, indicating the enhancement raman scattering activity of the hollow nanostructure to p-atp. the enhancement factors (ef) at the hollow nanostructures were obtained to be as large as (0.8 +/- 0.3)x10(6) and (2.7 +/- 0.5)x10(8) for 7a and 19b (b(2)) vibration mode, respectively, which was 30-40 times larger than that at silver nanoparticles with solid interiors at 514.5 nm excitation. ef values were also obtained at 1064 nm excitation for 7a and b(2)-type vibration mode, which were estimated to be as large as (1.0 +/- 0.3)x10(6) and (0.9 +/- 0.2)x10(7), respectively. the additional ef values by a factor of similar to 10 for b(2)-type band were assumed to be due to the chemical effect. large electromagnetic ef values were presumed to derive from a strong localized plasmas electromagnetic field existed at the hollow nanostructures.
收录类别	SCI
语种	英语
WOS记录号	WOS:000239423600050
公开日期	2010-08-17
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/16103]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Wang YL,Chen HJ,Dong SJ,et al. Surface-enhanced Raman scattering of silver-gold bimetallic nanostructures with hollow interiors[J]. journal of chemical physics,2006,125(4):文献编号：044710.
APA	Wang YL,Chen HJ,Dong SJ,&Wang EK.(2006).Surface-enhanced Raman scattering of silver-gold bimetallic nanostructures with hollow interiors.journal of chemical physics,125(4),文献编号：044710.
MLA	Wang YL,et al."Surface-enhanced Raman scattering of silver-gold bimetallic nanostructures with hollow interiors".journal of chemical physics 125.4(2006):文献编号：044710.