Fluorination on both D and A units in D–A type conjugated copolymers based on difluorobithiophene and benzothiadiazole for highly efficient polymer solar cells

• DOI: 10.1039/c5ee00855g
• Publication Date: 2015-06-19T13:01:50Z
• Authors: Jea Woong Jo; Jae Woong Jung; Eui Hyuk Jung; Hyungju Ahn; Tae Joo Shin; Won Ho Jo
• Keywords: 540; 01 natural sciences; 7. Clean energy; 0104 chemical sciences

The optimization of the number of fluorine substitution in D–A polymers composed of difluorobithiophene and benzothiadiazole reveals that the polymer with mono-fluorinated benzothiadiazole exhibits a PCE of 9.14%.