Synthesis and Characterization of Cyclopentadithiophene and Thienothiophene-Based Polymers for Organic Thin-Film Transistors and Solar Cells
donor-donor type conjugated polymers; organic solar cells; organic thin film transistors
Novel donor-donor type alternating copolymers (8CDT-TT and 16CDT-TT) derived from cyclopentadithiophene (CDT) and thienothiophene (TT) moieties that differ from solubilizing side chains were successfully synthesized and characterized. After the synthesis of CDT-TT-based conjugated polymers with dioctyl and dihexadecyl side chains, their optical, thermal, structural and semiconducting properties were investigated. Organic thin-film transistors fabricated from 8CDT-TT and 16CDT-TT exhibit carrier mobilities as high as 3.920-4 and 1.050-3 cm2V-1s-1, respectively. Bulk heterojunction solar cells fabricated using a polymer:PCBM blend ratio of 1:3 exhibit power conversion efficiencies of 2.12 and 1.84% for 8CDT-TT and 16CDT-TT, respectively. 2018, The Polymer Society of Korea and Springer Nature B.V.
Madathil P.K.; Cho S.; Choi S.; Kim T.-D.; Lee K.-S.
Macromolecular Research, Vol-26, No. 10, pp. 934-941.
Madathil P.K., Department of Advanced Materials, Hannam University, Daejeon, 34054, South Korea, Department of Chemistry, Christ University, Bangalore, 560029, India; Cho S., Department of Physics and EHSRC, University of Ulsan, Ulsan, 44610, South Korea; Choi S., Department of Advanced Materials, Hannam University, Daejeon, 34054, South Korea; Kim T.-D., Department of Advanced Materials, Hannam University, Daejeon, 34054, South Korea; Lee K.-S., Department of Advanced Materials, Hannam University, Daejeon, 34054, South Korea