Issue 19, 2011
From the journal:

CrystEngComm

Green synthesis of rosettelike silver nanocrystals with textured surface topography and highly efficient SERS performances†

Maofeng Zhang,ab   Aiwu Zhao,*ab   Hongyan Guo,a   Dapeng Wang,a   Zibao Gan,a   Henghui Sun,a   Da Lia  and  Ming Lia  

* Corresponding authors

a Institute of Intelligent Machines, Chinese Academy of Sciences, Hefei, P. R. China
E-mail: awzhao@iim.ac.cn

b State Key Laboratory of Transducer Technology, Chinese Academy of Sciences, Hefei, P. R. China

Abstract

3D rosettelike silver nanocrystals were synthesized in a large scale via a green synthetic method at room temperature without using any surfactants. The rosettelike silver nanocrystals exhibit a special textured surface morphology with a wedge-shaped architecture and higher specific surface area. The shape, size and surface morphology of the silver nanostructures can be well controlled by changing the reaction parameters. Further investigation shows different surface morphologies of silver lead to different surface plasmon resonance (SPR) and resulting surface-enhanced Raman scattering (SERS) properties. And the rosettelike silver with textured surface morphology displays much higher SERS enhancement ability than hollow sphere silver and stringlike silver, which demonstrates the crucial role of nanoscale surface texturing on the plasmonic response of silver particles. Importantly, the detection limit of rosettelike silver for Rhodamine 6G (R6G) dye can reach up to 10−14 M, which meets the requirements of ultratrace detection of analytes using SERS.

Graphical abstract: Green synthesis of rosettelike silver nanocrystals with textured surface topography and highly efficient SERS performances

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Article information

DOI
https://doi.org/10.1039/C1CE05105A
Article type
Paper
Submitted
20 Jan 2011
Accepted
03 Mar 2011
First published
31 Mar 2011

CrystEngComm, 2011,13, 5709-5717

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Green synthesis of rosettelike silver nanocrystals with textured surface topography and highly efficient SERS performances

M. Zhang, A. Zhao, H. Guo, D. Wang, Z. Gan, H. Sun, D. Li and M. Li, CrystEngComm, 2011, 13, 5709 DOI: 10.1039/C1CE05105A

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