Particle-Arrayed Silver Mesocubes Synthesized via Reducing Silver Oxide Mesocrystals for Surface-Enhanced Raman Spectroscopy

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	Particle-Arrayed Silver Mesocubes Synthesized via Reducing Silver Oxide Mesocrystals for Surface-Enhanced Raman Spectroscopy
	Yang, ZB ; Zhang, L ; You, HJ ; Li, ZY ; Fang, JX
刊名	PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION
	2014
卷号	31 期号:3 页码:390
关键词	mesocrystal single-particle SERS Ag mesocages Ag2O template nanogaps
ISSN号	0934-0866
通讯作者	Yang, ZB (reprint author), Xi An Jiao Tong Univ, Sch Sci, Xian 710049, Shannxi, Peoples R China.
中文摘要	In this study, we demonstrate an easy particle-mediated protocol using the specific structure of mesocrystal Ag2O sacrificial templates to synthesize highly rough-cubic Ag mesocages. To the best of our knowledge, the mesocrystal particles are reported for the first time as sacrificial templates for synthesizing metal particles. The obtained Ag mesocages show high surface-enhanced Raman scattering (SERS) sensitivity because of the highly rough topography formed by arrays of uniform individual Ag nanoparticles. Abundant hot spots with greatly enhanced local electromagnetic field are promoted densely on the mesocage surface by the plenty of deep and narrow gaps and the hollow structure. The single-particle SERS signal generated by the Ag mesocage has an enhancement factor of approximately 10(9), which is approximately four times higher than the Ag mesocage synthesized using single-crystal Ag2O particle as a template. Meanwhile, this signal displays a linear dependence on the detected analyte concentration, sensitively down to 1.0 x 10(-12) m.
资助信息	National Natural Science Foundation of China [51171139, 51201122]; Natural Science Foundation of Shaanxi Province [2012JQ6006]; Doctoral Fund for New Teachers [20120201120049, 20110201120039]; Tengfei Talent Project of Xi'an Jiaotong University; New Century Excellent Talents in University (NCET); Scientific New Star Program in Shann Xi Province [2012KJXX-03]; Fundamental Research Funds for the Central Universities
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/59431]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Yang, ZB,Zhang, L,You, HJ,et al. Particle-Arrayed Silver Mesocubes Synthesized via Reducing Silver Oxide Mesocrystals for Surface-Enhanced Raman Spectroscopy[J]. PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION,2014,31(3):390.
APA	Yang, ZB,Zhang, L,You, HJ,Li, ZY,&Fang, JX.(2014).Particle-Arrayed Silver Mesocubes Synthesized via Reducing Silver Oxide Mesocrystals for Surface-Enhanced Raman Spectroscopy.PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION,31(3),390.
MLA	Yang, ZB,et al."Particle-Arrayed Silver Mesocubes Synthesized via Reducing Silver Oxide Mesocrystals for Surface-Enhanced Raman Spectroscopy".PARTICLE & PARTICLE SYSTEMS CHARACTERIZATION 31.3(2014):390.