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Properties of chlorophyll based organic dye sensitizer molecule extracted in various solvents / Azlina Ahmad Khan ...[et al.]

Dye-sensitized solar cell (DSSC) has been actively researched due to its lower fabrication cost. In DSSC, sensitizer imitates photosynthesis process in plants by absorbing the photon energy from the sunlight. This research investigated methanolic extracted chlorophyll dye sensitizer in comparison to...

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Main Authors: Ahmad Khan, Azlina, Zainal, Nurfarahin, Mokhtar, Marina, Mamat, Mohamad Hafiz, Abdullah, Mohd Hanapiah
Format: Article
Language:English
Published: UiTM Press 2022
Subjects:
Semiconductor physics
Online Access:https://ir.uitm.edu.my/id/eprint/63280/1/63280.pdf
https://doi.org/10.24191/jeesr.v20i1.014
https://ir.uitm.edu.my/id/eprint/63280/
https://jeesr.uitm.edu.my/v1/
https://doi.org/10.24191/jeesr.v20i1.014
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spelling my.uitm.ir.632802022-06-30T08:37:33Z https://ir.uitm.edu.my/id/eprint/63280/ Properties of chlorophyll based organic dye sensitizer molecule extracted in various solvents / Azlina Ahmad Khan ...[et al.] Ahmad Khan, Azlina Zainal, Nurfarahin Mokhtar, Marina Mamat, Mohamad Hafiz Abdullah, Mohd Hanapiah Semiconductor physics Dye-sensitized solar cell (DSSC) has been actively researched due to its lower fabrication cost. In DSSC, sensitizer imitates photosynthesis process in plants by absorbing the photon energy from the sunlight. This research investigated methanolic extracted chlorophyll dye sensitizer in comparison to water extracted and bare chlorophyll. Density Functional Theory (DFT) and Time-Dependent Density Functional Theory (TD-DFT) methods in Gaussian 03/Gaussview 03 software were used to investigate its optical and electronic properties. Each of the molecular structure (methanol and water) was individually attached to chlorophyll, and their performances were determined. Results demonstrated that the absorbance spectrum of chlorophyll shows a broad peak in the visible range from 400 to 700 nm with its highest peak at 430 nm. Energy gap of chll-m between the E(LUMO) and the conduction band of TiO2 semiconductor, EC(TiO2) or so called as VOC is slightly smaller compared to water (chll-w). Meanwhile, the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) bandgap of chll-m is slightly higher at 2.13 eV. Finally, position of LUMO to redox electrolyte in chll-m is the lowest, which is favourable for faster electron transition. From observation, chll-m demonstrated better optical and electronic properties compared to its counterparts and hence good for chlorophyll sensitizer extraction. UiTM Press 2022-04 Article PeerReviewed text en https://ir.uitm.edu.my/id/eprint/63280/1/63280.pdf Properties of chlorophyll based organic dye sensitizer molecule extracted in various solvents / Azlina Ahmad Khan ...[et al.]. (2022) Journal of Electrical and Electronic Systems Research (JEESR), 20: 14. pp. 102-107. ISSN 1985-5389 https://jeesr.uitm.edu.my/v1/ https://doi.org/10.24191/jeesr.v20i1.014 https://doi.org/10.24191/jeesr.v20i1.014
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
language English
topic Semiconductor physics
spellingShingle Semiconductor physics
Ahmad Khan, Azlina
Zainal, Nurfarahin
Mokhtar, Marina
Mamat, Mohamad Hafiz
Abdullah, Mohd Hanapiah
Properties of chlorophyll based organic dye sensitizer molecule extracted in various solvents / Azlina Ahmad Khan ...[et al.]
description Dye-sensitized solar cell (DSSC) has been actively researched due to its lower fabrication cost. In DSSC, sensitizer imitates photosynthesis process in plants by absorbing the photon energy from the sunlight. This research investigated methanolic extracted chlorophyll dye sensitizer in comparison to water extracted and bare chlorophyll. Density Functional Theory (DFT) and Time-Dependent Density Functional Theory (TD-DFT) methods in Gaussian 03/Gaussview 03 software were used to investigate its optical and electronic properties. Each of the molecular structure (methanol and water) was individually attached to chlorophyll, and their performances were determined. Results demonstrated that the absorbance spectrum of chlorophyll shows a broad peak in the visible range from 400 to 700 nm with its highest peak at 430 nm. Energy gap of chll-m between the E(LUMO) and the conduction band of TiO2 semiconductor, EC(TiO2) or so called as VOC is slightly smaller compared to water (chll-w). Meanwhile, the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) bandgap of chll-m is slightly higher at 2.13 eV. Finally, position of LUMO to redox electrolyte in chll-m is the lowest, which is favourable for faster electron transition. From observation, chll-m demonstrated better optical and electronic properties compared to its counterparts and hence good for chlorophyll sensitizer extraction.
format Article
author Ahmad Khan, Azlina
Zainal, Nurfarahin
Mokhtar, Marina
Mamat, Mohamad Hafiz
Abdullah, Mohd Hanapiah
author_facet Ahmad Khan, Azlina
Zainal, Nurfarahin
Mokhtar, Marina
Mamat, Mohamad Hafiz
Abdullah, Mohd Hanapiah
author_sort Ahmad Khan, Azlina
title Properties of chlorophyll based organic dye sensitizer molecule extracted in various solvents / Azlina Ahmad Khan ...[et al.]
title_short Properties of chlorophyll based organic dye sensitizer molecule extracted in various solvents / Azlina Ahmad Khan ...[et al.]
title_full Properties of chlorophyll based organic dye sensitizer molecule extracted in various solvents / Azlina Ahmad Khan ...[et al.]
title_fullStr Properties of chlorophyll based organic dye sensitizer molecule extracted in various solvents / Azlina Ahmad Khan ...[et al.]
title_full_unstemmed Properties of chlorophyll based organic dye sensitizer molecule extracted in various solvents / Azlina Ahmad Khan ...[et al.]
title_sort properties of chlorophyll based organic dye sensitizer molecule extracted in various solvents / azlina ahmad khan ...[et al.]
publisher UiTM Press
publishDate 2022
url https://ir.uitm.edu.my/id/eprint/63280/1/63280.pdf
https://doi.org/10.24191/jeesr.v20i1.014
https://ir.uitm.edu.my/id/eprint/63280/
https://jeesr.uitm.edu.my/v1/
https://doi.org/10.24191/jeesr.v20i1.014
_version_ 1738514017711816704
score 13.211869

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