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Chemically deposited polypyrrole-nanoparticle counter electrode for inorganic I -/I 3 - and organic T -/T 2 dye-sensitized solar cells
Author(s)
Towannang, Madsakorn
Pimanpang, Samuk
Thiangkaew, Anongnad
Rutphonsan, Phikun
Maiaugree, Wasan
Harnchana, Viyada
Jarernboon, Wirat
Amornkitbamrung, Vittaya
Date Issued
December 1, 2012
Type
Article
Abstract
Pure polypyrrole (PPy) and composited PPy-nanoparticles (multiwall carbon nanotubes (MWCNTs), nickel (Ni) or, titanium dioxide (TiO 2)) films were coated on conductive glass by a chemical deposition method. They were used as dye-sensitized solar cell counter electrodes. The performance of pure PPy based dye-sensitized solar cells (DSSCs) was ∼6.00% and ∼2.81% for I -/I 3 - and T -/T 2 electrolytes, respectively. The efficiencies increased after MWCNTs and Ni nanoparticle incorporation for both electrolytes, but decreased with TiO 2 addition. PPy-MWCNTs DSSCs delivered the highest efficiency; ∼7.20% and ∼3.19% for I -/I 3 - and T -/T 2 electrolytes, respectively. The improvement of the energy conversion efficiency after MWCNTs and Ni incorporation is attributed to an increase in the electrode surface area and/or a reduction of charge-transfer resistance at the electrolyte/counter electrode interface. © 2012 Elsevier B.V.
Citation
Synthetic Metals, 162(21-22), 1954-1960, 2012