Photoelectrochemical performance and carrier lifetime of electrodes based on MWCNT-templated TiO2 nanoribbons
Abstract Electron lifetime and photoelectrochemical performance of carbon-doped TiO2 electrodes are presented. Thin films of random disposed ribbon-like structures of C-doped TiO2 were applied onto FTO substrates using spray and dip-coating techniques. The fabricated electrodes show photocurrent enh...
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doaj-ab3b465e211f491a8a45804f6d2d8a4e2020-11-24T21:27:37ZengSpringerOpenMaterials for Renewable and Sustainable Energy2194-14592194-14672018-07-01731610.1007/s40243-018-0126-8Photoelectrochemical performance and carrier lifetime of electrodes based on MWCNT-templated TiO2 nanoribbonsJ. C. Calva-Yáñez0M. Solís de la Fuente1M. Ramírez-Vargas2M. E. Rincón3CONACyT-Centro de Graduados e Investigación en Química, Instituto Tecnológico de TijuanaInstituto de Energías Renovables, Universidad Nacional Autónoma de MéxicoInstituto de Energías Renovables, Universidad Nacional Autónoma de MéxicoInstituto de Energías Renovables, Universidad Nacional Autónoma de MéxicoAbstract Electron lifetime and photoelectrochemical performance of carbon-doped TiO2 electrodes are presented. Thin films of random disposed ribbon-like structures of C-doped TiO2 were applied onto FTO substrates using spray and dip-coating techniques. The fabricated electrodes show photocurrent enhancement 20 times greater than compact TiO2 electrode, and electron lifetimes 2 orders of magnitude lower than compact TiO2 films. Enhancement in photocurrent suggests a beneficial role of C-doping which compensates the transport properties expected to deteriorate in disordered and thicker architectures. Due to its large surface area, C-doped TiO2 electrodes can be used as matrix for the deposition of QD sensitizers for photovoltaic applications or as photoanode for photocatalytic applications. Still optimization on film thickness and passivation strategies must be implemented to increase the carrier lifetime.http://link.springer.com/article/10.1007/s40243-018-0126-8Electron lifetimeC-doped TiO2Photon to current efficiency |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
J. C. Calva-Yáñez M. Solís de la Fuente M. Ramírez-Vargas M. E. Rincón |
spellingShingle |
J. C. Calva-Yáñez M. Solís de la Fuente M. Ramírez-Vargas M. E. Rincón Photoelectrochemical performance and carrier lifetime of electrodes based on MWCNT-templated TiO2 nanoribbons Materials for Renewable and Sustainable Energy Electron lifetime C-doped TiO2 Photon to current efficiency |
author_facet |
J. C. Calva-Yáñez M. Solís de la Fuente M. Ramírez-Vargas M. E. Rincón |
author_sort |
J. C. Calva-Yáñez |
title |
Photoelectrochemical performance and carrier lifetime of electrodes based on MWCNT-templated TiO2 nanoribbons |
title_short |
Photoelectrochemical performance and carrier lifetime of electrodes based on MWCNT-templated TiO2 nanoribbons |
title_full |
Photoelectrochemical performance and carrier lifetime of electrodes based on MWCNT-templated TiO2 nanoribbons |
title_fullStr |
Photoelectrochemical performance and carrier lifetime of electrodes based on MWCNT-templated TiO2 nanoribbons |
title_full_unstemmed |
Photoelectrochemical performance and carrier lifetime of electrodes based on MWCNT-templated TiO2 nanoribbons |
title_sort |
photoelectrochemical performance and carrier lifetime of electrodes based on mwcnt-templated tio2 nanoribbons |
publisher |
SpringerOpen |
series |
Materials for Renewable and Sustainable Energy |
issn |
2194-1459 2194-1467 |
publishDate |
2018-07-01 |
description |
Abstract Electron lifetime and photoelectrochemical performance of carbon-doped TiO2 electrodes are presented. Thin films of random disposed ribbon-like structures of C-doped TiO2 were applied onto FTO substrates using spray and dip-coating techniques. The fabricated electrodes show photocurrent enhancement 20 times greater than compact TiO2 electrode, and electron lifetimes 2 orders of magnitude lower than compact TiO2 films. Enhancement in photocurrent suggests a beneficial role of C-doping which compensates the transport properties expected to deteriorate in disordered and thicker architectures. Due to its large surface area, C-doped TiO2 electrodes can be used as matrix for the deposition of QD sensitizers for photovoltaic applications or as photoanode for photocatalytic applications. Still optimization on film thickness and passivation strategies must be implemented to increase the carrier lifetime. |
topic |
Electron lifetime C-doped TiO2 Photon to current efficiency |
url |
http://link.springer.com/article/10.1007/s40243-018-0126-8 |
work_keys_str_mv |
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1725974401715798016 |