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...
Saved in:
Main Authors: | , , , , , , , |
---|---|
Other Authors: | |
Format: | Article |
Published: |
Elsevier Ltd
2024
|
Subjects: | |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
my.uniten.dspace-34437 |
---|---|
record_format |
dspace |
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 |