Solvent exfoliated graphene incorporated mixed phase TiO2 transparent photoelectrode for the efficient and color transparent dye-sensitized solar cell

Dye-Sensitized Solar Cells have emerged as solar technology for practical application as building-integrated photovoltaic (BIPV) due to low-cost processing, working ability in the ambient environment, and colour transparency. The colour transparency is inherited from the nanostructured mesoporous Ti...

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Main Authors: Shahid, M.U., Mohamed, N.M., Muhsan, A.S., Zaine, S.N.A., Bashiri, R., Khatani, M., Samsudin, A.E.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.30076 /
Published: Elsevier Ltd 2020
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85086395398&doi=10.1016%2fj.solener.2020.06.003&partnerID=40&md5=182fe2291b34b42abc7c1dd21885c25c
http://eprints.utp.edu.my/30076/
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spelling utp-eprints.300762022-03-25T06:33:43Z Solvent exfoliated graphene incorporated mixed phase TiO2 transparent photoelectrode for the efficient and color transparent dye-sensitized solar cell Shahid, M.U. Mohamed, N.M. Muhsan, A.S. Zaine, S.N.A. Bashiri, R. Khatani, M. Samsudin, A.E. Dye-Sensitized Solar Cells have emerged as solar technology for practical application as building-integrated photovoltaic (BIPV) due to low-cost processing, working ability in the ambient environment, and colour transparency. The colour transparency is inherited from the nanostructured mesoporous TiO2 and colourful dye. However, mesoporous TiO2 possesses poor electron transport properties due to multiple grain boundaries, resulting in undesirable recombination reactions that lead to the loss of photoconversion efficiency (PCE). Reduced graphene oxide (rGO) is incorporated in the TiO2 matrix to improve its electron transport properties. Nevertheless, rGO cannot give full benefit of graphene due to its defective structure, which promotes recombination. Therefore, here a solvent exfoliated high-quality graphene in mesoporous TiO2 photoelectrode having mixed phase composition anatase, rutile, and brookite phase is introduced. Graphene/TiO2 hybrid structures are produced with different graphene loading, and their structural, optical, and electron transport properties are thoroughly investigated. Electrochemical impedance spectroscopy (EIS) indicates that electron lifetime increases by 159, electron diffusion length increases by 25, while recombination rate reduces by 62.77 than the pure TiO2 at optimum graphene loading (0.0025 wt). Consequently, an increase of 18.45 and 30.89 PCE is obtained relative to pure TiO2 and commercial paste, respectively. © 2020 International Solar Energy Society Elsevier Ltd 2020 Article NonPeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85086395398&doi=10.1016%2fj.solener.2020.06.003&partnerID=40&md5=182fe2291b34b42abc7c1dd21885c25c Shahid, M.U. and Mohamed, N.M. and Muhsan, A.S. and Zaine, S.N.A. and Bashiri, R. and Khatani, M. and Samsudin, A.E. (2020) Solvent exfoliated graphene incorporated mixed phase TiO2 transparent photoelectrode for the efficient and color transparent dye-sensitized solar cell. Solar Energy, 206 . pp. 317-329. http://eprints.utp.edu.my/30076/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Dye-Sensitized Solar Cells have emerged as solar technology for practical application as building-integrated photovoltaic (BIPV) due to low-cost processing, working ability in the ambient environment, and colour transparency. The colour transparency is inherited from the nanostructured mesoporous TiO2 and colourful dye. However, mesoporous TiO2 possesses poor electron transport properties due to multiple grain boundaries, resulting in undesirable recombination reactions that lead to the loss of photoconversion efficiency (PCE). Reduced graphene oxide (rGO) is incorporated in the TiO2 matrix to improve its electron transport properties. Nevertheless, rGO cannot give full benefit of graphene due to its defective structure, which promotes recombination. Therefore, here a solvent exfoliated high-quality graphene in mesoporous TiO2 photoelectrode having mixed phase composition anatase, rutile, and brookite phase is introduced. Graphene/TiO2 hybrid structures are produced with different graphene loading, and their structural, optical, and electron transport properties are thoroughly investigated. Electrochemical impedance spectroscopy (EIS) indicates that electron lifetime increases by 159, electron diffusion length increases by 25, while recombination rate reduces by 62.77 than the pure TiO2 at optimum graphene loading (0.0025 wt). Consequently, an increase of 18.45 and 30.89 PCE is obtained relative to pure TiO2 and commercial paste, respectively. © 2020 International Solar Energy Society
format Article
author Shahid, M.U.
Mohamed, N.M.
Muhsan, A.S.
Zaine, S.N.A.
Bashiri, R.
Khatani, M.
Samsudin, A.E.
spellingShingle Shahid, M.U.
Mohamed, N.M.
Muhsan, A.S.
Zaine, S.N.A.
Bashiri, R.
Khatani, M.
Samsudin, A.E.
Solvent exfoliated graphene incorporated mixed phase TiO2 transparent photoelectrode for the efficient and color transparent dye-sensitized solar cell
author_sort Shahid, M.U.
title Solvent exfoliated graphene incorporated mixed phase TiO2 transparent photoelectrode for the efficient and color transparent dye-sensitized solar cell
title_short Solvent exfoliated graphene incorporated mixed phase TiO2 transparent photoelectrode for the efficient and color transparent dye-sensitized solar cell
title_full Solvent exfoliated graphene incorporated mixed phase TiO2 transparent photoelectrode for the efficient and color transparent dye-sensitized solar cell
title_fullStr Solvent exfoliated graphene incorporated mixed phase TiO2 transparent photoelectrode for the efficient and color transparent dye-sensitized solar cell
title_full_unstemmed Solvent exfoliated graphene incorporated mixed phase TiO2 transparent photoelectrode for the efficient and color transparent dye-sensitized solar cell
title_sort solvent exfoliated graphene incorporated mixed phase tio2 transparent photoelectrode for the efficient and color transparent dye-sensitized solar cell
publisher Elsevier Ltd
publishDate 2020
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85086395398&doi=10.1016%2fj.solener.2020.06.003&partnerID=40&md5=182fe2291b34b42abc7c1dd21885c25c
http://eprints.utp.edu.my/30076/
_version_ 1741197345896267776
score 11.62408

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