Plasmon-induced efficiency enhancement on dye-sensitized solar cell by a 3D TNW-AuNP layer.
ACS Appl Mater Interfaces
; 7(3): 1892-8, 2015 Jan 28.
Article
em En
| MEDLINE
| ID: mdl-25548958
ABSTRACT
A new 3D TNW-AuNP plasmonic electrode consists of antireflective (AR) TiO2 nanowires (TNWs) (â¼600 nm thickness) serving as light-harvesting antennae coupling with Au nanoparticles (NPs). A huge red-shift of 55 nm is observed in surface plasmon spectra for the Au (11 nm) plasmonic electrode that has 11 nm size Au NPs, whereby (111) lattice planes have a specific bonding with the TiO2 (101) planes. Remarkable red-shift is mainly attributed to the localized electric field improvement resulting from the plasmonic coupling effect between the Au NPs and the Au-TiO2 hybrids. After TiCl4 treatment, this favorable Au (11 nm) nanostructure takes advantage of harvesting photons to increase the conversion efficiency of dye-sensitized solar cells (DSSCs) from 6.25% to 9.73%.
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MEDLINE
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En
Ano de publicação:
2015
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Article