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.
Graphical Abstract
Keywords
ultrathin nanoporous gold film, electrochemical dealloy, localized surface plasmon resonance (LSPR)
Publication Date
2013-04-28
Online Available Date
2012-04-27
Revised Date
2012-04-17
Received Date
2012-03-21
Recommended Citation
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.
DOI: 10.61558/2993-074X.2107
Available at:
https://jelectrochem.xmu.edu.cn/journal/vol19/iss2/5
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