High photo-currents with a zwitterionic thiocyanate-free dye in aqueous-based dye sensitized solar cells. Issue 13 (29th February 2016)

• Record Type: Journal Article
• Authors: Fayad, Remi; Shoker, Tharallah A.; Ghaddar, Tarek H.
• Is Part Of: Dalton transactions. Volume 45:Issue 13(2016)
• Page Start: 5622
• Page End: 5628
• Publication Date: 2016-02-29
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c6dt00071a
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : A zwitterionic dye shows high photocurrent and incident photon to current efficiency in water based dye sensitized solar cells. Abstract : We report a new water soluble and stable thiolate/disulfide redox couple (T − /DS) and its use with a new zwitterionic and thiocyanate-free dye (T169 ) in a 100% aqueous electrolyte system. A DSSC incorporatingT169 and the T − /DS showed the highest photocurrents ( J sc = 13.30 mA cm −2 ) and IPCE% (84%) values reported to date. In addition, a 2000 h long-term stability measurement was performed, where J sc and V oc of the above mentioned DSSC stayed somehow the same except for the fill factor (FF) which decreased from 0.62 to 0.48 and consequently lowered the total efficiency (from η = 4.5% on day 1 to η = 3.3% after 2000 h).