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Efficient passivation of SnO2 nano crystallites by Indoline D-149 via dual chelation

Paper ID Volume ID Publish Year Pages File Format Full-Text
27581 44030 2011 4 PDF Available
Title
Efficient passivation of SnO2 nano crystallites by Indoline D-149 via dual chelation
Abstract

For the first time in SnO2 based dye solar cells, here we report, efficiency exceeding 3% of the cells consisting with Indoline D-149 dye with unmodified SnO2 nano-crystallites. The cells sensitized with metal free D-149 dye together with liquid electrolyte comprising with 0.5 M tetrapropyl ammonium iodide and 0.05 M iodine in a mixture of acetonitrile and ethylene carbonate (1:4 by volume) delivered a short circuit current density of 10.4 mA cm−2 with an open circuit voltage of 530 mV under the illumination of 100 mW cm−2 (AM1.5) having an efficiency of 3.1%. As evident from the FTIR measurement, strong surface passivation of recombination centers of SnO2 crystallites due to the dual mode of attachment of dye molecules to the surface of SnO2 via both COOH and S–O direct bond might be the possible reason for this enhancement in these SnO2 based cells.

Keywords
Indoline D-149; SnO2; Dye sensitization; Solar cells; Recombination
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Efficient passivation of SnO2 nano crystallites by Indoline D-149 via dual chelation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 217, Issue 1, 1 January 2011, Pages 249–252
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
Online Support
Any Questions? feel free to contact us