On the behaviour of Au plasmonic nanoparticles during hydrogen evolution at p-Si
Published
Journal Article
Brewster Angle Reflectometry (BAR) and spectral photocurrent analysis show that Au nanoparticles are in a resonant state during light-induced hydrogen evolution with unpolarized light near-normal incidence. Keggin-type phosphododecamolybdate (PMo12O403-) anions were used as reducing and stabilizing agents to form novel Au nanoparticles (Au-NPs). BAR was employed to analyze the resonant optical response after adsorption to the surface of hydrogen terminated p-Si(111):H (1 × 1) and SiO2. Proton reduction in 1 M H2SO4 occurs at asymmetric Au-NPs where also multipole field effects influence the plasmonic behaviour. In a comparative discussion, the contribution of surface plasmon polariton excitation to the observed pronounced photocurrent enhancement is outlined. © 2010 Elsevier B.V.
Full Text
Duke Authors
Cited Authors
- Lublow, M; Skorupska, K; Zoladek, S; Kulesza, PJ; Vo-Dinh, T; Lewerenz, HJ
Published Date
- October 1, 2010
Published In
Volume / Issue
- 12 / 10
Start / End Page
- 1298 - 1301
International Standard Serial Number (ISSN)
- 1388-2481
Digital Object Identifier (DOI)
- 10.1016/j.elecom.2010.07.004
Citation Source
- Scopus