NDLI: Efficient quasi-solid-state dye-sensitized solar cells from graphene incorporated conducting gel electrolytes

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Back cover

Journal of Materials Chemistry A Vol - 2 Issue - 7

Journal of Materials Chemistry A Vol - 2 Issue - 6

Journal of Materials Chemistry A Vol - 2 Issue - 5

Journal of Materials Chemistry A Vol -1

Efficient quasi-solid-state dye-sensitized solar cells from graphene incorporated conducting gel electrolytes

Content Provider	Royal Society of Chemistry (RSC)
Author	He, Benlin Ma, Chunqing Hu, Bingbing Yuan, Shuangshuang Tang, Qunwei Duan, Jialong
Copyright Year	2014
Abstract	Aimed at enhancing the liquid electrolyte loading, ionic conductivity, and electrocatalytic activity toward iodides, a freeze-dried microporous polyacrylate–poly(ethylene glycol) (PAA–PEG) matrix was employed to uptake conducting substances, such as graphene, graphene oxide, and graphite. A liquid electrolyte loading of 21.1 g per g and a room-temperature ionic conductivity of 11.60 mS cm−1 were obtained from the PAA–PEG/graphene conducting gel electrolyte. The conducting substances can form interconnected channels within the insulating microporous PAA–PEG matrix, therefore, the reduction reaction of triiodide ions in the dye-sensitized solar cells (DSSCs) can be extended from the Pt/gel electrolyte interface to both the interface and three-dimensional framework of the microporous conducting gel electrolyte. The resulting DSSCs made from PAA–PEG/graphene, PAA–PEG/graphene oxide, and PAA–PEG/graphite exhibit power conversion efficiencies of 7.74%, 6.49%, and 5.63%, respectively, which are much higher than 5.02% exhibited by a pure PAA–PEG-based DSSC. This new concept, along with ease of fabrication suggests that microporous conducting gel electrolytes could be good alternative electrolytes for use in efficient quasi-solid-state DSSCs.
Starting Page	2814
Ending Page	2821
Page Count	8
File Format	HTM / HTML PDF
ISSN	20507488
Volume Number	2
Issue Number	8
Journal	Journal of Materials Chemistry A
DOI	10.1039/c3ta14385f
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	PAA Electrolyte Freeze-drying Ethylene glycol Composite material Graphene Graphite Triiodide Dye-sensitized solar cell
Content Type	Text
Resource Type	Article
Subject	Chemistry Renewable Energy, Sustainability and the Environment Materials Science

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