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Electrochemical stability and corrosion mechanism of fluorine-doped tin oxide film under cathodic polarization in near neutral electrolyte

Commercial fluorine-doped tin oxide (FTO) coated glass slides were subjected to different cathodic potentials for 15 min in 0.2 M Na2SO4 of pH 6.42 to study their electrochemical stability. Results showed that FTO could maintain its electrochemical stability until-1200 mV. However, when it was catho...

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Main Authors: Sanz-Navarro, Carlos Federico, Lee, Siaw Foon, Yap, Seong Shan, Nee, Chen Hon, Yap, Seong Ling
Format: Article
Published: Elsevier Science SA 2023
Subjects:
QC Physics
Online Access:http://eprints.um.edu.my/38776/
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spelling my.um.eprints.387762023-12-01T01:26:39Z http://eprints.um.edu.my/38776/ Electrochemical stability and corrosion mechanism of fluorine-doped tin oxide film under cathodic polarization in near neutral electrolyte Sanz-Navarro, Carlos Federico Lee, Siaw Foon Yap, Seong Shan Nee, Chen Hon Yap, Seong Ling QC Physics Commercial fluorine-doped tin oxide (FTO) coated glass slides were subjected to different cathodic potentials for 15 min in 0.2 M Na2SO4 of pH 6.42 to study their electrochemical stability. Results showed that FTO could maintain its electrochemical stability until-1200 mV. However, when it was cathodically polarized from-1600 mV to more negative potentials, band structure positions started to shift upwards, the electrolyte became more acidic and a porous structure appeared on the FTO surface. At-2000 mV, a layer of metallic Sn was seen deposited on the FTO surface, verified by X-ray diffraction and scanning electron microscopy - energy dispersive X-ray spectroscopy. During the cathodic corrosion in near neutral electrolyte, the reduction of SnO2 to Sn in-volves water oxidation as well as hydrogen evolution reaction. Elsevier Science SA 2023-03-01 Article PeerReviewed Sanz-Navarro, Carlos Federico and Lee, Siaw Foon and Yap, Seong Shan and Nee, Chen Hon and Yap, Seong Ling (2023) Electrochemical stability and corrosion mechanism of fluorine-doped tin oxide film under cathodic polarization in near neutral electrolyte. Thin Solid Films, 768. ISSN 0040-6090, DOI https://doi.org/10.1016/j.tsf.2023.139697 <https://doi.org/10.1016/j.tsf.2023.139697>. 10.1016/j.tsf.2023.139697
institution Universiti Malaya
building UM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaya
content_source UM Research Repository
url_provider http://eprints.um.edu.my/
topic QC Physics
spellingShingle QC Physics
Sanz-Navarro, Carlos Federico
Lee, Siaw Foon
Yap, Seong Shan
Nee, Chen Hon
Yap, Seong Ling
Electrochemical stability and corrosion mechanism of fluorine-doped tin oxide film under cathodic polarization in near neutral electrolyte
description Commercial fluorine-doped tin oxide (FTO) coated glass slides were subjected to different cathodic potentials for 15 min in 0.2 M Na2SO4 of pH 6.42 to study their electrochemical stability. Results showed that FTO could maintain its electrochemical stability until-1200 mV. However, when it was cathodically polarized from-1600 mV to more negative potentials, band structure positions started to shift upwards, the electrolyte became more acidic and a porous structure appeared on the FTO surface. At-2000 mV, a layer of metallic Sn was seen deposited on the FTO surface, verified by X-ray diffraction and scanning electron microscopy - energy dispersive X-ray spectroscopy. During the cathodic corrosion in near neutral electrolyte, the reduction of SnO2 to Sn in-volves water oxidation as well as hydrogen evolution reaction.
format Article
author Sanz-Navarro, Carlos Federico
Lee, Siaw Foon
Yap, Seong Shan
Nee, Chen Hon
Yap, Seong Ling
author_facet Sanz-Navarro, Carlos Federico
Lee, Siaw Foon
Yap, Seong Shan
Nee, Chen Hon
Yap, Seong Ling
author_sort Sanz-Navarro, Carlos Federico
title Electrochemical stability and corrosion mechanism of fluorine-doped tin oxide film under cathodic polarization in near neutral electrolyte
title_short Electrochemical stability and corrosion mechanism of fluorine-doped tin oxide film under cathodic polarization in near neutral electrolyte
title_full Electrochemical stability and corrosion mechanism of fluorine-doped tin oxide film under cathodic polarization in near neutral electrolyte
title_fullStr Electrochemical stability and corrosion mechanism of fluorine-doped tin oxide film under cathodic polarization in near neutral electrolyte
title_full_unstemmed Electrochemical stability and corrosion mechanism of fluorine-doped tin oxide film under cathodic polarization in near neutral electrolyte
title_sort electrochemical stability and corrosion mechanism of fluorine-doped tin oxide film under cathodic polarization in near neutral electrolyte
publisher Elsevier Science SA
publishDate 2023
url http://eprints.um.edu.my/38776/
_version_ 1784511850621173760
score 13.211869

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