Optimization of titanium dioxide decorated by graphene quantum dot as a light scattering layer for enhanced dye-sensitized solar cell performance
Titanium dioxide (TiO2) as a photoanode in dye-sensitized solar cells (DSSCs) has some drawbacks that reduce its photovoltaic performances i.e. low dye loading capacity and low light-harvesting efficiency. Therefore, TiO2 decorated by graphene quantum dot (GQD) as a light scatterer has been successf...
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| Format: | Article |
| Language: | English |
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Elsevier
2020
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| Online Access: | http://psasir.upm.edu.my/id/eprint/87017/ http://psasir.upm.edu.my/id/eprint/87017/1/Optimization%20of%20titanium%20dioxide%20decorated%20by%20graphene%20quantum.pdf |
| _version_ | 1848860344892522496 |
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| author | Mustafa, Muhammad Norhaffis Sulaiman, Yusran |
| author_facet | Mustafa, Muhammad Norhaffis Sulaiman, Yusran |
| author_sort | Mustafa, Muhammad Norhaffis |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Titanium dioxide (TiO2) as a photoanode in dye-sensitized solar cells (DSSCs) has some drawbacks that reduce its photovoltaic performances i.e. low dye loading capacity and low light-harvesting efficiency. Therefore, TiO2 decorated by graphene quantum dot (GQD) as a light scatterer has been successfully fabricated via electrodeposition and drop-casting. The response surface methodology/central composite design was successfully utilized to optimize the preparation of photoanode with TiO2-GQD as a light scattering layer (LSL). A reduced quadratic model was successfully designed to predict the power conversion efficiency (PCE) accurately up to 97% with a 3% residual standard error. The TiO2-GQD LSL depicted a cluster of spherical nanoparticles on top of the photoanode that not only enhanced the light scattering effect but also improved the light-harvesting range from visible light to ultraviolet and near-infrared range. The resultant TiO2 nanoparticles with TiO2-GQD LSL showed vast enhancement of PCE up to 66% from 3.06% to 5.01% due to a good synergistic effect. |
| first_indexed | 2025-11-15T12:43:45Z |
| format | Article |
| id | upm-87017 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T12:43:45Z |
| publishDate | 2020 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-870172022-01-10T08:35:57Z http://psasir.upm.edu.my/id/eprint/87017/ Optimization of titanium dioxide decorated by graphene quantum dot as a light scattering layer for enhanced dye-sensitized solar cell performance Mustafa, Muhammad Norhaffis Sulaiman, Yusran Titanium dioxide (TiO2) as a photoanode in dye-sensitized solar cells (DSSCs) has some drawbacks that reduce its photovoltaic performances i.e. low dye loading capacity and low light-harvesting efficiency. Therefore, TiO2 decorated by graphene quantum dot (GQD) as a light scatterer has been successfully fabricated via electrodeposition and drop-casting. The response surface methodology/central composite design was successfully utilized to optimize the preparation of photoanode with TiO2-GQD as a light scattering layer (LSL). A reduced quadratic model was successfully designed to predict the power conversion efficiency (PCE) accurately up to 97% with a 3% residual standard error. The TiO2-GQD LSL depicted a cluster of spherical nanoparticles on top of the photoanode that not only enhanced the light scattering effect but also improved the light-harvesting range from visible light to ultraviolet and near-infrared range. The resultant TiO2 nanoparticles with TiO2-GQD LSL showed vast enhancement of PCE up to 66% from 3.06% to 5.01% due to a good synergistic effect. Elsevier 2020-11-01 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/87017/1/Optimization%20of%20titanium%20dioxide%20decorated%20by%20graphene%20quantum.pdf Mustafa, Muhammad Norhaffis and Sulaiman, Yusran (2020) Optimization of titanium dioxide decorated by graphene quantum dot as a light scattering layer for enhanced dye-sensitized solar cell performance. Journal of Electroanalytical Chemistry, 876. art. no. 114516. pp. 1-11. ISSN 1572-6657 https://www.sciencedirect.com/science/article/abs/pii/S1572665720307438?via%3Dihub 10.1016/j.jelechem.2020.114516 |
| spellingShingle | Mustafa, Muhammad Norhaffis Sulaiman, Yusran Optimization of titanium dioxide decorated by graphene quantum dot as a light scattering layer for enhanced dye-sensitized solar cell performance |
| title | Optimization of titanium dioxide decorated by graphene quantum dot as a light scattering layer for enhanced dye-sensitized solar cell performance |
| title_full | Optimization of titanium dioxide decorated by graphene quantum dot as a light scattering layer for enhanced dye-sensitized solar cell performance |
| title_fullStr | Optimization of titanium dioxide decorated by graphene quantum dot as a light scattering layer for enhanced dye-sensitized solar cell performance |
| title_full_unstemmed | Optimization of titanium dioxide decorated by graphene quantum dot as a light scattering layer for enhanced dye-sensitized solar cell performance |
| title_short | Optimization of titanium dioxide decorated by graphene quantum dot as a light scattering layer for enhanced dye-sensitized solar cell performance |
| title_sort | optimization of titanium dioxide decorated by graphene quantum dot as a light scattering layer for enhanced dye-sensitized solar cell performance |
| url | http://psasir.upm.edu.my/id/eprint/87017/ http://psasir.upm.edu.my/id/eprint/87017/ http://psasir.upm.edu.my/id/eprint/87017/ http://psasir.upm.edu.my/id/eprint/87017/1/Optimization%20of%20titanium%20dioxide%20decorated%20by%20graphene%20quantum.pdf |