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The effect of hydrogen on the morphology of n-type silicon electrodes under electrochemical conditions

Goldar, A. ; Roser, S. J. ; Caruana, D. ; Gerstenberg, M. C. ; Hughes, A. V. and Edler, K. J. LU orcid (2001) In Physical Chemistry Chemical Physics 3(24). p.5559-5566
Abstract

We study the electrochemical roughening of a silicon electrode surface during the hydrogen evolution reaction in a fluoride electrolyte using neutron reflection. We demonstrate that as the roughening process modifies the morphology of the silicon surface we can follow the changes by observing the changes in the shape of the total reflection feature. We assume that the change in the morphology of the surface is due to the diffusion of hydrogen in the silicon electrode. This assumption allow us to model the changes in the reflected intensity at two different angles and find the diffusion exponent for the diffusion of hydrogen in the silicon lattice.

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author
; ; ; ; and
publishing date
type
Contribution to journal
publication status
published
in
Physical Chemistry Chemical Physics
volume
3
issue
24
pages
8 pages
publisher
Royal Society of Chemistry
external identifiers
  • scopus:0035696098
ISSN
1463-9076
DOI
10.1039/b104378c
language
English
LU publication?
no
id
1a96199a-89ce-4587-b19f-49b7dad0b13b
date added to LUP
2023-05-04 18:43:55
date last changed
2023-06-13 12:50:26
@article{1a96199a-89ce-4587-b19f-49b7dad0b13b,
  abstract     = {{<p>We study the electrochemical roughening of a silicon electrode surface during the hydrogen evolution reaction in a fluoride electrolyte using neutron reflection. We demonstrate that as the roughening process modifies the morphology of the silicon surface we can follow the changes by observing the changes in the shape of the total reflection feature. We assume that the change in the morphology of the surface is due to the diffusion of hydrogen in the silicon electrode. This assumption allow us to model the changes in the reflected intensity at two different angles and find the diffusion exponent for the diffusion of hydrogen in the silicon lattice.</p>}},
  author       = {{Goldar, A. and Roser, S. J. and Caruana, D. and Gerstenberg, M. C. and Hughes, A. V. and Edler, K. J.}},
  issn         = {{1463-9076}},
  language     = {{eng}},
  number       = {{24}},
  pages        = {{5559--5566}},
  publisher    = {{Royal Society of Chemistry}},
  series       = {{Physical Chemistry Chemical Physics}},
  title        = {{The effect of hydrogen on the morphology of n-type silicon electrodes under electrochemical conditions}},
  url          = {{http://dx.doi.org/10.1039/b104378c}},
  doi          = {{10.1039/b104378c}},
  volume       = {{3}},
  year         = {{2001}},
}