超薄纳米多孔金膜的制备及其局域表面等离子体效应研究

doi:10.61558/2993-074X.2107

电化学（中英文） ›› 2013, Vol. 19 ›› Issue (2): 151-154. doi: 10.61558/2993-074X.2107

超薄纳米多孔金膜的制备及其局域表面等离子体效应研究

冯时，陈述，杨青，向娟^*

中南大学化学化工学院，湖南长沙 410083

收稿日期:2012-03-21 修回日期:2012-04-17 出版日期:2013-04-28 发布日期:2012-04-27
通讯作者: 向娟 E-mail:xiangj@csu.edu.cn
基金资助:
湖南省杰出青年基金（No. 09JJ1002）资助

Fabrication and Localized Surface Plasmon Resonance of Ultrathin Nanoporous Gold Films

FENG Shi, CHEN Shu, YANG Qing, XIANG Juan^*

Department of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China

Received:2012-03-21 Revised:2012-04-17 Published:2013-04-28 Online:2012-04-27
Contact: XIANG Juan E-mail:xiangj@csu.edu.cn

摘要/Abstract

摘要： 采用电化学去合金法制得50 nm的超薄纳米多孔金膜（Nanoporous Gold Film，NPGF），其表面粗糙度可预估NPGF的表面形貌. SEM表征证实，在扫描下限大于-0.1 V时，控制伏安扫描的循环周数可获得不同粗糙度的NPGF. 利用反射紫外可见光谱研究了NPGF的局域表面等离子体效应（LSPR）. 结果显示，NPGF在450 nm处的LSPR效应受其表面粗糙度影响，在优化的粗糙度下，NPGF的局域表面等离子体效应可实现乙二醇溶液浓度的定量检测.

关键词: 超薄纳米多孔金膜, 电化学去合金法, 局域表面等离子体共振（LSPR）

Abstract: Ultrathin nanoporous gold films (NPGF) with a thickness of approximately 50 nm were fabricated via electrochemical dealloy method. The morphology of NPGF was evaluated with a parameter of surface roughness. SEM results demonstrate that the fabrication of NPGF with different roughness factors can be achieved by controlling the circles of cyclic voltammetry. UV-Vis spectra indicate that the localized surface plasmon resonance (LSPR) of NPGF is affected by the roughness of NPGF. With the optimal roughness factor, NPGF displays a linear relationship between the ethanediol concentration and the absorbance intensity at λ = 450 nm. The LSPR effect of NPGF presents potential applications in quantitative detection of solution concentration.

Key words: ultrathin nanoporous gold film, electrochemical dealloy, localized surface plasmon resonance (LSPR)

中图分类号:

O646
TQ035

冯时, 陈述, 杨青, 向娟. 超薄纳米多孔金膜的制备及其局域表面等离子体效应研究[J]. 电化学（中英文）, 2013, 19(2): 151-154.

FENG Shi, CHEN Shu, YANG Qing, XIANG Juan. Fabrication and Localized Surface Plasmon Resonance of Ultrathin Nanoporous Gold Films[J]. Journal of Electrochemistry, 2013, 19(2): 151-154.

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超薄纳米多孔金膜的制备及其局域表面等离子体效应研究

Fabrication and Localized Surface Plasmon Resonance of Ultrathin Nanoporous Gold Films

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