Premium
High‐Performance Aqueous/Organic Dye‐Sensitized Solar Cells Based on Sensitizers Containing Triethylene Oxide Methyl Ether
Author(s) -
Lin Ryan YehYung,
Wu FengLing,
Li ChunTing,
Chen PeiYu,
Ho KuoChuan,
Lin Jiann T.
Publication year - 2015
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201500589
Subject(s) - triethylene glycol , dye sensitized solar cell , aqueous solution , acetonitrile , electrolyte , chemistry , iodide , open circuit voltage , oxide , lithium (medication) , inorganic chemistry , photochemistry , materials science , polymer chemistry , organic chemistry , electrode , medicine , endocrinology , physics , quantum mechanics , voltage
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 OC ), leading to excellent conversion efficiency of the cells, ranging from 9.02 to 9.98 % with I − /I 3 − 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 OC values (0.80–0.88 V) and very promising cell performances of up to 5.97 %.