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Influence of thickness and morphology of MoS(2) on the performance of counter electrodes in dye-sensitized solar cells

Non-platinum electrodes for photoelectric devices are challenging and attractive to the scientific community. A thin film of molybdenum disulfide (MoS(2)) was prepared on substrates coated with fluorine-doped tin oxide (FTO) to substitute the platinum counter electrode (CE) for dye-sensitized solar...

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Autores principales: Mai, Lam Thuy Thi, Le, Hai Viet, Nguyen, Ngan Kim Thi, Pham, Van La Tran, Nguyen, Thu Anh Thi, Huynh, Nguyen Thanh Le, Nguyen, Hoang Thai
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Beilstein-Institut 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9235830/
https://www.ncbi.nlm.nih.gov/pubmed/35812249
http://dx.doi.org/10.3762/bjnano.13.44
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author Mai, Lam Thuy Thi
Le, Hai Viet
Nguyen, Ngan Kim Thi
Pham, Van La Tran
Nguyen, Thu Anh Thi
Huynh, Nguyen Thanh Le
Nguyen, Hoang Thai
author_facet Mai, Lam Thuy Thi
Le, Hai Viet
Nguyen, Ngan Kim Thi
Pham, Van La Tran
Nguyen, Thu Anh Thi
Huynh, Nguyen Thanh Le
Nguyen, Hoang Thai
author_sort Mai, Lam Thuy Thi
collection PubMed
description Non-platinum electrodes for photoelectric devices are challenging and attractive to the scientific community. A thin film of molybdenum disulfide (MoS(2)) was prepared on substrates coated with fluorine-doped tin oxide (FTO) to substitute the platinum counter electrode (CE) for dye-sensitized solar cells (DSSCs). Herein, we synthesized layered and honeycomb-like MoS(2) thin films via the cyclic voltammetry (CV) route. Thickness and morphology of the MoS(2) thin films were controlled via the concentration of precursor solution. The obtained results showed that MoS(2) thin films formed at a low precursor concentration had a layered morphology while a honeycomb-like MoS(2) thin film was formed at a high precursor concentration. Both types of MoS(2) thin film were composed of 1T and 2H structures and exhibited excellent electrocatalytic activity for the I(3)(–/)I(−) redox couple. DSSCs assembled using these MoS(2) CEs showed a maximal power conversion efficiency of 7.33%. The short-circuit value reached 16.3 mA·cm(−2), which was higher than that of a conventional Pt/FTO CE (15.3 mA·cm(−2)). This work reports for the first time the possibility to obtain a honeycomb-like MoS(2) thin film morphology by the CV method and investigates the effect of film structure on the electrocatalytic activity and photovoltaic performance of CEs for DSSC application.
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spelling pubmed-92358302022-07-08 Influence of thickness and morphology of MoS(2) on the performance of counter electrodes in dye-sensitized solar cells Mai, Lam Thuy Thi Le, Hai Viet Nguyen, Ngan Kim Thi Pham, Van La Tran Nguyen, Thu Anh Thi Huynh, Nguyen Thanh Le Nguyen, Hoang Thai Beilstein J Nanotechnol Full Research Paper Non-platinum electrodes for photoelectric devices are challenging and attractive to the scientific community. A thin film of molybdenum disulfide (MoS(2)) was prepared on substrates coated with fluorine-doped tin oxide (FTO) to substitute the platinum counter electrode (CE) for dye-sensitized solar cells (DSSCs). Herein, we synthesized layered and honeycomb-like MoS(2) thin films via the cyclic voltammetry (CV) route. Thickness and morphology of the MoS(2) thin films were controlled via the concentration of precursor solution. The obtained results showed that MoS(2) thin films formed at a low precursor concentration had a layered morphology while a honeycomb-like MoS(2) thin film was formed at a high precursor concentration. Both types of MoS(2) thin film were composed of 1T and 2H structures and exhibited excellent electrocatalytic activity for the I(3)(–/)I(−) redox couple. DSSCs assembled using these MoS(2) CEs showed a maximal power conversion efficiency of 7.33%. The short-circuit value reached 16.3 mA·cm(−2), which was higher than that of a conventional Pt/FTO CE (15.3 mA·cm(−2)). This work reports for the first time the possibility to obtain a honeycomb-like MoS(2) thin film morphology by the CV method and investigates the effect of film structure on the electrocatalytic activity and photovoltaic performance of CEs for DSSC application. Beilstein-Institut 2022-06-17 /pmc/articles/PMC9235830/ /pubmed/35812249 http://dx.doi.org/10.3762/bjnano.13.44 Text en Copyright © 2022, Mai et al. https://creativecommons.org/licenses/by/4.0/This is an open access article licensed under the terms of the Beilstein-Institut Open Access License Agreement (https://www.beilstein-journals.org/bjnano/terms/terms), which is identical to the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0 (https://creativecommons.org/licenses/by/4.0/) ). The reuse of material under this license requires that the author(s), source and license are credited. Third-party material in this article could be subject to other licenses (typically indicated in the credit line), and in this case, users are required to obtain permission from the license holder to reuse the material.
spellingShingle Full Research Paper
Mai, Lam Thuy Thi
Le, Hai Viet
Nguyen, Ngan Kim Thi
Pham, Van La Tran
Nguyen, Thu Anh Thi
Huynh, Nguyen Thanh Le
Nguyen, Hoang Thai
Influence of thickness and morphology of MoS(2) on the performance of counter electrodes in dye-sensitized solar cells
title Influence of thickness and morphology of MoS(2) on the performance of counter electrodes in dye-sensitized solar cells
title_full Influence of thickness and morphology of MoS(2) on the performance of counter electrodes in dye-sensitized solar cells
title_fullStr Influence of thickness and morphology of MoS(2) on the performance of counter electrodes in dye-sensitized solar cells
title_full_unstemmed Influence of thickness and morphology of MoS(2) on the performance of counter electrodes in dye-sensitized solar cells
title_short Influence of thickness and morphology of MoS(2) on the performance of counter electrodes in dye-sensitized solar cells
title_sort influence of thickness and morphology of mos(2) on the performance of counter electrodes in dye-sensitized solar cells
topic Full Research Paper
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9235830/
https://www.ncbi.nlm.nih.gov/pubmed/35812249
http://dx.doi.org/10.3762/bjnano.13.44
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