Electron transport of chemically treated graphene quantum dots-based dye-sensitized solar cells

The main aim of this work is to elucidate the effect of the chemical treatment of titanium tetrachloride (TiCl4) in graphene quantum dots (GQDs)-based dye-sensitized solar cells (DSSCs). Although this type of chemical treatment has been used in DSSCs, the detailed electron transport properties of Ti...

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Main Authors: Mahalingam S., Manap A., Rabeya R., Lau K.S., Chia C.H., Abdullah H., Amin N., Chelvanathan P.
Other Authors: 55434075500
Format: Article
Published: Elsevier Ltd 2024
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spelling my.uniten.dspace-344372024-10-14T11:19:47Z Electron transport of chemically treated graphene quantum dots-based dye-sensitized solar cells Mahalingam S. Manap A. Rabeya R. Lau K.S. Chia C.H. Abdullah H. Amin N. Chelvanathan P. 55434075500 57200642155 57207761973 57196329217 57215089308 26025061200 7102424614 35766323200 Electron injection efficiency Energy Graphene quantum dots Titanium tetrachloride Dye-sensitized solar cells Electron injection Electron transport properties Graphene Nanocrystals Quantum chemistry Semiconductor quantum dots Titanium dioxide Chemical treatments Dye- sensitized solar cells Electron injection efficiency Electron transport Electron-transport properties Electrons injection Energy High surface area Injection efficiency Titania layers Chlorine compounds The main aim of this work is to elucidate the effect of the chemical treatment of titanium tetrachloride (TiCl4) in graphene quantum dots (GQDs)-based dye-sensitized solar cells (DSSCs). Although this type of chemical treatment has been used in DSSCs, the detailed electron transport properties of TiCl4-treated TiO2/GQDs+dye have not been studied yet. In this study, we have proposed a detailed mechanism for how the extra titania layer with TiCl4 provides high surface area and porosity to improve the adsorption of GQDs and dye. Moreover, the electron transport analysis revealed that the treatment reduced the electron recombination rate and increased the electron injection efficiency up to 73.8%, leading to a high Jsc and longer electron lifetime in the DSSC. Additionally, a performance comparison study with other types of GQDs under TiCl4 treatment was also investigated in this work. � 2022 Elsevier Ltd Final 2024-10-14T03:19:47Z 2024-10-14T03:19:47Z 2023 Article 10.1016/j.electacta.2022.141667 2-s2.0-85145584726 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85145584726&doi=10.1016%2fj.electacta.2022.141667&partnerID=40&md5=42ec7fccec897e63831c5b962f8131cc https://irepository.uniten.edu.my/handle/123456789/34437 439 141667 Elsevier Ltd Scopus
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
topic Electron injection efficiency
Energy
Graphene quantum dots
Titanium tetrachloride
Dye-sensitized solar cells
Electron injection
Electron transport properties
Graphene
Nanocrystals
Quantum chemistry
Semiconductor quantum dots
Titanium dioxide
Chemical treatments
Dye- sensitized solar cells
Electron injection efficiency
Electron transport
Electron-transport properties
Electrons injection
Energy
High surface area
Injection efficiency
Titania layers
Chlorine compounds
spellingShingle Electron injection efficiency
Energy
Graphene quantum dots
Titanium tetrachloride
Dye-sensitized solar cells
Electron injection
Electron transport properties
Graphene
Nanocrystals
Quantum chemistry
Semiconductor quantum dots
Titanium dioxide
Chemical treatments
Dye- sensitized solar cells
Electron injection efficiency
Electron transport
Electron-transport properties
Electrons injection
Energy
High surface area
Injection efficiency
Titania layers
Chlorine compounds
Mahalingam S.
Manap A.
Rabeya R.
Lau K.S.
Chia C.H.
Abdullah H.
Amin N.
Chelvanathan P.
Electron transport of chemically treated graphene quantum dots-based dye-sensitized solar cells
description The main aim of this work is to elucidate the effect of the chemical treatment of titanium tetrachloride (TiCl4) in graphene quantum dots (GQDs)-based dye-sensitized solar cells (DSSCs). Although this type of chemical treatment has been used in DSSCs, the detailed electron transport properties of TiCl4-treated TiO2/GQDs+dye have not been studied yet. In this study, we have proposed a detailed mechanism for how the extra titania layer with TiCl4 provides high surface area and porosity to improve the adsorption of GQDs and dye. Moreover, the electron transport analysis revealed that the treatment reduced the electron recombination rate and increased the electron injection efficiency up to 73.8%, leading to a high Jsc and longer electron lifetime in the DSSC. Additionally, a performance comparison study with other types of GQDs under TiCl4 treatment was also investigated in this work. � 2022 Elsevier Ltd
author2 55434075500
author_facet 55434075500
Mahalingam S.
Manap A.
Rabeya R.
Lau K.S.
Chia C.H.
Abdullah H.
Amin N.
Chelvanathan P.
format Article
author Mahalingam S.
Manap A.
Rabeya R.
Lau K.S.
Chia C.H.
Abdullah H.
Amin N.
Chelvanathan P.
author_sort Mahalingam S.
title Electron transport of chemically treated graphene quantum dots-based dye-sensitized solar cells
title_short Electron transport of chemically treated graphene quantum dots-based dye-sensitized solar cells
title_full Electron transport of chemically treated graphene quantum dots-based dye-sensitized solar cells
title_fullStr Electron transport of chemically treated graphene quantum dots-based dye-sensitized solar cells
title_full_unstemmed Electron transport of chemically treated graphene quantum dots-based dye-sensitized solar cells
title_sort electron transport of chemically treated graphene quantum dots-based dye-sensitized solar cells
publisher Elsevier Ltd
publishDate 2024
_version_ 1814061180679880704
score 13.222552