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Enhanced Solar Efficiency via Incorporation of Plasmonic Gold Nanostructures in a Titanium Oxide/Eosin Y Dye-Sensitized Solar Cell

Plasmonic gold nanoparticles significantly improved the efficiency of a TiO(2) and Eosin Y based dye-sensitized solar cell from 2.4 to 6.43%. The gold nanoparticles’ sizes that were tested were 14 nm, 30 nm and 40 nm synthesized via the systematic reduction of citrate concentration using the Turkevi...

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Autores principales: Nyembe, Sanele, Chindeka, Francis, Ndlovu, Gebhu, Mkhohlakali, Andile, Nyokong, Tebello, Sikhwivhilu, Lucky
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9145802/
https://www.ncbi.nlm.nih.gov/pubmed/35630936
http://dx.doi.org/10.3390/nano12101715
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author Nyembe, Sanele
Chindeka, Francis
Ndlovu, Gebhu
Mkhohlakali, Andile
Nyokong, Tebello
Sikhwivhilu, Lucky
author_facet Nyembe, Sanele
Chindeka, Francis
Ndlovu, Gebhu
Mkhohlakali, Andile
Nyokong, Tebello
Sikhwivhilu, Lucky
author_sort Nyembe, Sanele
collection PubMed
description Plasmonic gold nanoparticles significantly improved the efficiency of a TiO(2) and Eosin Y based dye-sensitized solar cell from 2.4 to 6.43%. The gold nanoparticles’ sizes that were tested were 14 nm, 30 nm and 40 nm synthesized via the systematic reduction of citrate concentration using the Turkevich method. Prestine TiO(2) without plasmonic gold nanoparticles yielded an efficiency of 2.4%. However, the loading of 40 nm gold nanoparticles into the TiO(2) matrix yielded the highest DSSC efficiency of 6.43% compared to 30 nm (5.91%) and 14 nm (2.6%). The relatively high efficiency demonstrated by plasmonic gold nanoparticles is ascribed to light absorption/scattering, hot electron injection and plasmon-induced resonance energy transfer (PIRET), influenced by the size of the gold nanoparticles.
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spelling pubmed-91458022022-05-29 Enhanced Solar Efficiency via Incorporation of Plasmonic Gold Nanostructures in a Titanium Oxide/Eosin Y Dye-Sensitized Solar Cell Nyembe, Sanele Chindeka, Francis Ndlovu, Gebhu Mkhohlakali, Andile Nyokong, Tebello Sikhwivhilu, Lucky Nanomaterials (Basel) Article Plasmonic gold nanoparticles significantly improved the efficiency of a TiO(2) and Eosin Y based dye-sensitized solar cell from 2.4 to 6.43%. The gold nanoparticles’ sizes that were tested were 14 nm, 30 nm and 40 nm synthesized via the systematic reduction of citrate concentration using the Turkevich method. Prestine TiO(2) without plasmonic gold nanoparticles yielded an efficiency of 2.4%. However, the loading of 40 nm gold nanoparticles into the TiO(2) matrix yielded the highest DSSC efficiency of 6.43% compared to 30 nm (5.91%) and 14 nm (2.6%). The relatively high efficiency demonstrated by plasmonic gold nanoparticles is ascribed to light absorption/scattering, hot electron injection and plasmon-induced resonance energy transfer (PIRET), influenced by the size of the gold nanoparticles. MDPI 2022-05-17 /pmc/articles/PMC9145802/ /pubmed/35630936 http://dx.doi.org/10.3390/nano12101715 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Nyembe, Sanele
Chindeka, Francis
Ndlovu, Gebhu
Mkhohlakali, Andile
Nyokong, Tebello
Sikhwivhilu, Lucky
Enhanced Solar Efficiency via Incorporation of Plasmonic Gold Nanostructures in a Titanium Oxide/Eosin Y Dye-Sensitized Solar Cell
title Enhanced Solar Efficiency via Incorporation of Plasmonic Gold Nanostructures in a Titanium Oxide/Eosin Y Dye-Sensitized Solar Cell
title_full Enhanced Solar Efficiency via Incorporation of Plasmonic Gold Nanostructures in a Titanium Oxide/Eosin Y Dye-Sensitized Solar Cell
title_fullStr Enhanced Solar Efficiency via Incorporation of Plasmonic Gold Nanostructures in a Titanium Oxide/Eosin Y Dye-Sensitized Solar Cell
title_full_unstemmed Enhanced Solar Efficiency via Incorporation of Plasmonic Gold Nanostructures in a Titanium Oxide/Eosin Y Dye-Sensitized Solar Cell
title_short Enhanced Solar Efficiency via Incorporation of Plasmonic Gold Nanostructures in a Titanium Oxide/Eosin Y Dye-Sensitized Solar Cell
title_sort enhanced solar efficiency via incorporation of plasmonic gold nanostructures in a titanium oxide/eosin y dye-sensitized solar cell
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9145802/
https://www.ncbi.nlm.nih.gov/pubmed/35630936
http://dx.doi.org/10.3390/nano12101715
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