Layer-by-layer Au nanoparticles as a Schottky barrier in a water-based dye-sensitized solar cell |
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| Authors: | YH Su WH Lai LG Teoh MH Hon JL Huang |
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| Institution: | (1) Department of Materials Science and Engineering, National Cheng Kung University, Tainan, 70101, Taiwan, R.O.C.;(2) Department of Mechanical Engineering, National Pingtung University of Science and Technology, Pingtung, 91201, Taiwan, R.O.C. |
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| Abstract: | We fabricated layer-by-layer gold nanoparticles (Au NPs) onto an electrode as a Schottky barrier in a water-based dye-sensitized
solar cell. The Maxwell–Garnett equation was used to fit the characteristics of the Au film. The short-circuit current for
four layers of Au NPs in a water-based dye-sensitized solar cell (DSSC) ranges from 2.76 mA/cm2 to 5.96 mA/cm2, which is due to the Schottky barrier reducing the number of electrons going from the semiconductor back to either the dye
or the electrolyte. The efficiency of photo-electric conversion for four layers of Au NPs in water-based DSSC can be enhanced
from 0.26% up to 0.95%.
PACS 85.30.Hi; 82.47.Jk; 73.63.-b; 81.16.-c; 78.67.Bf |
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