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Supramolecular electrolytes with multiple hydrogen bonds for solid state dye-sensitized solar cells

Paper ID Volume ID Publish Year Pages File Format Full-Text
26974 43991 2010 6 PDF Available
Title
Supramolecular electrolytes with multiple hydrogen bonds for solid state dye-sensitized solar cells
Abstract

Oligomeric supramolecules with double- (2H-P), triple- (3H-P) and quadruple H-bonding sites (4H-P) at their both chain ends of PEG (Mw = 2000) are successfully utilized to increase energy conversion efficiency for solid state dye-sensitized solar cells. The improved energy conversion efficiency is due mostly to the deeper penetration of the liquid oligomeric supramolecular electrolytes into the nanopores of the TiO2 layer, followed by in situ self-polymerization via multiple H-bonds and the improved ionic conductivity. Among the three solid state dye-sensitized solar cells, the 2H-P and 3H-P electrolytes shows better photovoltaic performances than the 4H-P electrolyte. The difference in the performance is mostly attributable to the fact that the 2H-P and 3H-P electrolytes have a slower electron recombination rate and a faster ionic diffusion coefficient, compared to the 4H-P electrolyte. Therefore, the characters of the liquid and the solid states of the supramolecules may have been able to be successfully utilized to increase the energy conversion efficiency over 4% for solid state dye-sensitized solar cells.

Keywords
Supramolecular polymer; Hydrogen bonding; Dye-sensitized solar cells
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Supramolecular electrolytes with multiple hydrogen bonds for solid state dye-sensitized solar cells
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 212, Issues 2–3, 20 May 2010, Pages 88–93
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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