Effect of the Terminal Acceptor Unit on the Performance of Non-Fullerene Indacenodithiophene Acceptors in Organic Solar Cells
Natalia Terenti,
Gavril-Ionel Giurgi,
Lorant Szolga,
Ioan Stroia,
Anamaria Terec,
Ion Grosu,
Andreea Petronela Crișan
Affiliations
Natalia Terenti
Department of Chemistry and SOOMCC, Faculty of Chemistry and Chemical Engineering, Babeș-Bolyai University, Cluj-Napoca, 11 Arany Janos Str., 400028 Cluj-Napoca, Romania
Gavril-Ionel Giurgi
Department of Chemistry and SOOMCC, Faculty of Chemistry and Chemical Engineering, Babeș-Bolyai University, Cluj-Napoca, 11 Arany Janos Str., 400028 Cluj-Napoca, Romania
Lorant Szolga
Optoelectronics Group, Base of Electronics Department, ETTI, Technical University of Cluj-Napoca, 28 Memorandumului Str., 400114 Cluj-Napoca, Romania
Ioan Stroia
Department of Chemistry and SOOMCC, Faculty of Chemistry and Chemical Engineering, Babeș-Bolyai University, Cluj-Napoca, 11 Arany Janos Str., 400028 Cluj-Napoca, Romania
Anamaria Terec
Department of Chemistry and SOOMCC, Faculty of Chemistry and Chemical Engineering, Babeș-Bolyai University, Cluj-Napoca, 11 Arany Janos Str., 400028 Cluj-Napoca, Romania
Ion Grosu
Department of Chemistry and SOOMCC, Faculty of Chemistry and Chemical Engineering, Babeș-Bolyai University, Cluj-Napoca, 11 Arany Janos Str., 400028 Cluj-Napoca, Romania
Andreea Petronela Crișan
Department of Chemistry and SOOMCC, Faculty of Chemistry and Chemical Engineering, Babeș-Bolyai University, Cluj-Napoca, 11 Arany Janos Str., 400028 Cluj-Napoca, Romania
Four acceptor–donor–acceptor (A–D–A)-type molecules bearing indacenodithiophene as donating central core and various end-capping acceptor units have been designed and synthesised as n-type materials suitable for organic solar cells (OSCs). The studied optical and electrochemical properties supported by theoretical calculations revealed that the nature and the strength of the terminal groups exert a decisive influence on the polymer bulk-heterojunction OSC performance.
