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A Combined Effect of Plasmon Energy Transfer and Recombination Barrier in a Novel TiO2/MgO/Ag Working Electrode for Dye-Sensitized Solar Cells
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Document Title
A Combined Effect of Plasmon Energy Transfer and Recombination Barrier in a Novel TiO2/MgO/Ag Working Electrode for Dye-Sensitized Solar Cells
Author
Photiphitak C, Rakkwamsuk P, Muthitamongkol P, Thanachayanont C
Name from Authors Collection
Affiliations
Suan Dusit University; King Mongkuts University of Technology Thonburi; National Science & Technology Development Agency - Thailand; National Metal & Materials Technology Center (MTEC)
Type
Article
Source Title
INTERNATIONAL JOURNAL OF PHOTOENERGY
ISSN
1110-662X
Year
2015
Volume
2015
Page
-
Open Access
gold, Green Submitted
Publisher
HINDAWI LTD
DOI
10.1155/2015/795138
Format
Abstract
Novel TiO2/MgO/Ag composite electrodes were applied as working electrodes of dye-sensitized solar cells (DSSCs). The TiO2/MgO/Ag composite films were prepared by dip coating method for MgO thin films and photoreduction method for Ag nanoparticles. The MgO film thicknesses and the Ag nanoparticle sizes were in ranges of 0.08-0.46 nm and 4.4-38.6 nm, respectively. The TiO2/MgO/Ag composite films were characterized by X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The TiO2/MgO/Ag composite electrodes were sensitized by immersing in a 0.3 mM of N719 dye solution and fabricated for conventional DSSCs. J-V characteristics of the TiO2/MgO/Ag DSSCs showed that the MgO film thickness of 0.1 nm and the Ag nanoparticle size of 4.4 nm resulted in maximum short circuit current density and efficiency of 8.6 mA/cm(2) and 5.2%, respectively. Electrochemical Impedance Spectroscopy showed that such values of short circuit current density and efficiency were optimal values obtained from plasmon energy transfer by 4.4 nm Ag nanoparticles and recombination barrier by the ultrathin MgO film.
Funding Sponsor
National Metal and Materials Technology Center (MTEC); Suan Dusit University, Thailand
License
CC BY
Rights
Authors
Publication Source
WOS