A near-infrared thienyl-BODIPY co-sensitizer for high-efficiency dye-sensitized solar cells. Issue 11 (1st August 2019)

• Record Type: Journal Article
• Authors: Shah, Md Faiz; Mirloup, Antoine; Chowdhury, Towhid H.; Alexandra, Sutter; Hanbazazah, Abdulkader S.; Ahmed, Anas; Lee, Jae-Joon; Leclerc, Nicolas; Abdel-Shakour, M.; Islam, Ashraful
• Is Part Of: Sustainable energy & fuels. Volume 3:Issue 11(2019)
• Page Start: 2983
• Page End: 2989
• Publication Date: 2019-08-01
• Subjects: Renewable energy sources -- Periodicals; Fuel cells -- Periodicals; Electric batteries -- Periodicals; Electrochemistry -- Periodicals; 660.297
• DOI: 10.1039/c9se00300b
• Languages: English
• ISSNs: 2398-4902

Abstract

Abstract : Two NIR BODIPY dyes T′2 P2 A and T′′2 P2 A were synthesized and used as photosensitizers in dye sensitized solar cells (DSSCs). Abstract : Two NIR BODIPY dyes T′2 P2 A and T′′2 P2 A were synthesized and used as photosensitizers in dye sensitized solar cells (DSSCs). T′2 P2 A and T′′2 P2 A were designed by incorporation of bis-thienyl vinyl and thienothiophene vinyl side-arms in the structure. This leads to a red shift in the absorption spectra leading to an enhancement in the incident photon to current conversion efficiency (IPCE). A high IPCE value of 64% at 750 nm and a power conversion efficiency (PCE) of 6.06% were observed for the T′2 P2 A based DSSC. Furthermore, based on the complementary absorption spectra of TP2 A and T′2 P2 A, even more efficient co-sensitized DSSCs were fabricated. The DSSC based on TP2 A + T′2 P2 A shows an enhancement in the IPCE from 47% to 74% at 550 nm compared to that based on the single dye system T′2 P2 A. Finally, a high PCE of 6.67% was obtained for the TP2 A + T′2 P2 A co-sensitized DSSC, which was higher than the performances of each individual dye.