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

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

Content Provider	MDPI
Author	Nyembe, Sanele Chindeka, Francis Ndlovu, Gebhu Mkhohlakali, Andile Nyokong, Tebello Sikhwivhilu, Lucky
Copyright Year	2022
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.
Starting Page	1715
e-ISSN	20794991
DOI	10.3390/nano12101715
Journal	Nanomaterials
Issue Number	10
Volume Number	12
Language	English
Publisher	MDPI
Publisher Date	2022-05-17
Access Restriction	Open
Subject Keyword	Nanomaterials Gold Nanoparticles Titanium Oxide Dye-sensitized Solar Cell Photon-to-electron Conversion Efficiency Hot Electron Injection Mechanism Charge Recombination
Content Type	Text
Resource Type	Article

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