Furan-bridged thiazolo [5, 4-d]thiazole based D–π–A–π–D type linear chromophore for solution-processed bulk-heterojunction organic solar cells. Issue 9 (22nd December 2014)

• Record Type: Journal Article
• Authors: Nazim, M.; Ameen, Sadia; Akhtar, M. Shaheer; Seo, Hyung-Kee; Shin, Hyung-Shik
• Is Part Of: RSC advances. Volume 5:Issue 9(2015)
• Page Start: 6286
• Page End: 6293
• Publication Date: 2014-12-22
• Subjects: Chemistry -- Periodicals; 540.5
• DOI: 10.1039/c4ra13655a
• Languages: English
• ISSNs: 2046-2069

Abstract

Abstract : Novel furan-bridged thiazolo[5, 4- d ]thiazole based π-conjugated organic chromophore (RFTzR) was formulated and utilized for the fabrication of solution-processed small molecule organic solar cells (SMOSCs). Abstract : Novel furan-bridged thiazolo[5, 4- d ]thiazole based π-conjugated organic chromophore (RFTzR) was formulated and utilized for small molecule organic solar cells (SMOSCs). The presence of furan spacer along with two terminal alkyl units significantly improved its absorption and solubility in the common organic solvents. RFTzR exhibited the reasonable HOMO and LUMO energy levels of −5.36 eV and −3.14 eV, respectively. The fabricated SMOSCs with RFTzR (donor) and PC60 BM (acceptor) as photoactive materials presented relatively high power conversion efficiency of ∼2.72% (RFTzR : PC60 BM, 2 : 1, w/w) along with good open-circuit voltage of ∼0.756 V and high photocurrent density of ∼10.13 mA cm −2, which might attribute to its improved absorption, electrochemical properties and the presence of strong electron-withdrawing furan moieties.