TY - JOUR
T1 - Synthesis of a new wide-bandgap conjugated copolymer with 3-trifluoromethylthiophene monomer and Its application to non-fullerene polymer solar cells
AU - Pitchamuthu, Amaladass
AU - Park, Chang Geun
AU - Park, Su Hong
AU - Cho, Min Ju
AU - Choi, Dong Hoon
N1 - Funding Information:
This research was supported by the National Research Foundation of Korea (NRF-2019R1A2C2002647 and 2019R1A6A1A11044070).
Publisher Copyright:
© 2019, © 2019 Taylor & Francis Group, LLC.
PY - 2019/6/13
Y1 - 2019/6/13
N2 - In this study, a novel wide-bandgap conjugate donor-acceptor type copolymer, PBDT-TFMTh, containing benzodithiophene (BDT) as a donor unit and trifluoromethyl (TFM)-substituted thiophene (Th) as an acceptor unit was designed and synthesized. The physical, optical, and electrochemical properties of PBDT-TFMTh were studied in detail and it was found to have lower-lying highest occupied and lowest unoccupied molecular orbitals. The polymer solar cell with an active layer consisting of PBDT-TFMTh and acceptor IDT(TCV)2 showed a relatively high power conversion efficiency of 2.25% after thermal annealing at 120 °C.
AB - In this study, a novel wide-bandgap conjugate donor-acceptor type copolymer, PBDT-TFMTh, containing benzodithiophene (BDT) as a donor unit and trifluoromethyl (TFM)-substituted thiophene (Th) as an acceptor unit was designed and synthesized. The physical, optical, and electrochemical properties of PBDT-TFMTh were studied in detail and it was found to have lower-lying highest occupied and lowest unoccupied molecular orbitals. The polymer solar cell with an active layer consisting of PBDT-TFMTh and acceptor IDT(TCV)2 showed a relatively high power conversion efficiency of 2.25% after thermal annealing at 120 °C.
KW - 3-trifluoromethylthiophene
KW - polymer solar cell
KW - power conversion efficiency
KW - wide-bandgap copolymer
UR - http://www.scopus.com/inward/record.url?scp=85073523469&partnerID=8YFLogxK
U2 - 10.1080/15421406.2019.1648033
DO - 10.1080/15421406.2019.1648033
M3 - Article
AN - SCOPUS:85073523469
SN - 1542-1406
VL - 686
SP - 30
EP - 37
JO - Molecular Crystals and Liquid Crystals
JF - Molecular Crystals and Liquid Crystals
IS - 1
ER -