Increasing the efficiency of dye-sensitized solar cells using plasmonic gold nanocrystals with SiO2 and TiO2 coating
Subject Areas : Synthesis and Characterization of Nanostructures
Leila Shabani
1
(
Department of Physics, Faculty of Science, Persian Gulf University, Bushehr. Iran
)
Ahmad Mohammadi
2
(
Department of Physics, Faculty of Science, Persian Gulf University, Bushehr. Iran
)
ُTahmineh Jalali
3
(
Department of Physics, Faculty of Science, Persian Gulf University, Bushehr. Iran
)
Keywords: Absorption, Surface plasmon, Au@SiO2 nanostructure, Au@TiO2 nanostructure.,
Abstract :
In this research, the synthesis of plasmonic nanoparticles was carried out by chemical dissolution method in three steps. Then, Au@TiO2 and Au@SiO2 core-shell nanostructures have been investigated. These nanostructures were used as photoanode in dye-sensitized solar cells (DSSCs). Parameters such as short circuit current, open circuit voltage, fill factor and conversion efficiency of DSSCs were obtained. The cell in which Au@TiO2 synthesized with mercaptoacetic acid ligand is used, has the highest efficiency. The primary causes of this are the heightened near-field effect of gold nanoparticles (AuNP) and the creation of enhanced photocurrent due to plasmonics.
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