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High-Performance Aqueous/Organic Dye-Sensitized Solar Cells Based on Sensitizers Containing Triethylene Oxide Methyl Ether.

Authors :
Lin, Ryan Yeh ‐ Yung
Wu, FENg ‐ Ling
Li, Chun ‐ Ting
ChEN, Pei ‐ Yu
Ho, Kuo ‐ Chuan
Lin, Jiann T.
Source :
ChemSusChem; Aug2015, Vol. 8 Issue 15, p2503-2513, 11p
Publication Year :
2015

Abstract

Metal-free dyes (EO1 to EO4) containing the hydrophilic triethylene oxide methyl ether (TEOME) unit in the spacer have been synthesized and used in dye-sensitized solar cells (DSSCs). Efficient lithium-ion trapping by TEOME results in improved open-circuit voltage ( V<subscript>OC</subscript>), leading to excellent conversion efficiency of the cells, ranging from 9.02 to 9.98 % with I<superscript>−</superscript>/I<subscript>3</subscript><superscript>−</superscript> electrolyte in acetonitrile under AM 1.5 illumination. The TEOME unit also enhances the wettability of the dye molecules for application in aqueous-based DSSCs. Aqueous-based DSSCs with a dual TEMPO/iodide electrolyte exhibit high V<subscript>OC</subscript> values (0.80-0.88 V) and very promising cell performances of up to 5.97 %. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
18645631
Volume :
8
Issue :
15
Database :
Complementary Index
Journal :
ChemSusChem
Publication Type :
Academic Journal
Accession number :
108951431
Full Text :
https://doi.org/10.1002/cssc.201500589