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Dye-sensitized solar cells based on N719 and cobalt gel electrolyte obtained through a room temperature process

Paper ID Volume ID Publish Year Pages File Format Full-Text
26009 43929 2016 7 PDF Available
Title
Dye-sensitized solar cells based on N719 and cobalt gel electrolyte obtained through a room temperature process
Abstract

•2.15% efficiency was obtained using N719 and [Co(bpy)3]2+/3+.•PMMA-based cobalt gel electrolyte was obtained through a room temperature process.•Quasi-solid device retained 70% of the efficiency of the liquid-based reference.•Quasi-solid device showed a substantial stability after 120 days.

Quasi-solid dye-sensitized solar cells were obtained by coupling N719 dye with a cobalt gel electrolyte. Firstly, the compatibility of the liquid [Co(bpy)3]3+/2+ redox mediator with N719 was improved by modifying the surface of sensitized photoanode, which resulted in an increase in efficiency of over 100%. Most importantly, a novel room-temperature route for producing a [Co(bpy)3]3+/2+-PMMA gel electrolyte was introduced for the first time. The formation of the gel phase was demonstrated by rheological analyses and the electrolyte was subjected to an extensive electrochemical characterization. The derived quasi-solid devices attained 70% of the efficiency of the liquid ones, and showed a degradation of only 15% after 120 days, which proved the high stability of the developed system.

Keywords
Dye-sensitized solar cells; Cobalt electrolyte; PMMA; N719
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Dye-sensitized solar cells based on N719 and cobalt gel electrolyte obtained through a room temperature process
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 330, 1 November 2016, Pages 8–14
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