Abstract
Four novel conjugated polymers (P1, P2, P3, and P4) based on coplanar thiophene−phenylene−thiophene (TPT) derivatives have been designed and synthesized for application in polymer solar cells (PSCs). The optical, electrochemical, field effect carrier mobility, and photovoltaic properties of P1−P4 are investigated and compared with those of poly(3-hexylthiophene) (P3HT). PSCs are fabricated based on the blend of the polymers and [6,6]-phenyl-C61-butyric acid methyl ester (PC61BM) or 1-(3-methoxycarbonyl)propyl-1-phenyl-[6,6]-C-71 (PC71BM) with a weight ratio of 1:3. The maximum power conversion efficiency (PCE) of the PSCs based on P3/PC71BM system reaches 3.3% with a short circuit current density (Jsc) of 7.6 mA/cm2, an open circuit voltage (Voc) of 0.8 V, and a fill factor (FF) of 0.54 under AM 1.5G (100 mW/cm2) illumination. The results indicate that the coplanar TPT conjugated derivatives are promising PSC materials.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
