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Molecular design of triarylamine dyes incorporating phenylene spacer and the influence of alkoxy substituent on the performance of dye-sensitized solar cells

Paper ID Volume ID Publish Year Pages File Format Full-Text
26667 43970 2011 9 PDF Available
Title
Molecular design of triarylamine dyes incorporating phenylene spacer and the influence of alkoxy substituent on the performance of dye-sensitized solar cells
Abstract

Molecular design and understanding the structure–property relationship of π-conjugated spacer play pivotal roles in realization of considerable enhancement performance of dye-sensitized solar cells (DSSCs). Three triphenylmaine dyes, namely MX11-13, have been designed and synthesized, which incorporate 2,2,6,6-tetramethylbenzo[1,2-d;4,5-d′]bis[1,3]dioxole (TMBD), phenyl and 1,4-dipropoxybenzene (DPB) as π-conjugated spacer, respectively. The effects of alkoxy substituent upon the photophysical, electro-chemical characteristics and performance of dye-sensitized solar cells are investigated. For a typical device, the MX13-based cell affords an overall power conversion efficiency (η) of 7.02%, with short-circuit photocurrent density (JSC), open-circuit voltage (VOC) and fill factor (ff) of 15.5 mA cm−2, 697 mV and 0.65, respectively.

Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► Triarylamine organic dyes featuring alkoxy substituent phenylene spacer. ► Introduction of alkoxy groups into the spacer is beneficial to light-harvesting. ► The highest conversion efficiency of 7.02% was obtained based on the three dyes.

Keywords
Dye-sensitized solar cell; Photovoltaic; High molar extinction coefficient; Phenylene spacer
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Molecular design of triarylamine dyes incorporating phenylene spacer and the influence of alkoxy substituent on the performance of dye-sensitized solar cells
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 225, Issue 1, 1 December 2011, Pages 8–16
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
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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