An N-ethylated barbituric acid end-capped bithiophene as an electron-acceptor material in fullerene-free organic photovoltaics. Issue 28 (11th March 2015)

• Record Type: Journal Article
• Authors: Sullivan, Paul; Collis, Gavin E.; Rochford, Luke A.; Arantes, Junior Ferreira; Kemppinen, Peter; Jones, Tim S.; Winzenberg, Kevin N.
• Is Part Of: Chemical communications. Volume 51:Issue 28(2015)
• Page Start: 6222
• Page End: 6225
• Publication Date: 2015-03-11
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c5cc00564g
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : An N -ethyl barbituric acid bithiophene derivative is demonstrated as an n-type acceptor material for organic photovoltaics, approaching an efficiency of 2.6% and open-circuit voltage of 1.4 V. Abstract : A new evaporable electron acceptor material for organic photovoltaics based on N -ethyl barbituric acid bithiophene (EBB) has been demonstrated. Bilayer devices fabricated with this non-fullerene acceptor and boron subphthalocyanine chloride (SubPc) donor produce power conversion efficiencies as high as 2.6% with an extremely large open-circuit voltage approaching 1.4 V.