Macromolecular Research

, Volume 26, Issue 13, pp 1193–1199 | Cite as

Two TPD-Based Conjugated Polymers: Synthesis and Photovoltaic Applications as Donor Materials

  • Ji Eun Lee
  • Yu Jin Kim
  • Jisu Hong
  • Xinwei Wu
  • Moon Chan Hwang
  • Soon-Ki KwonEmail author
  • Tae Kyu AnEmail author
  • Yun-Hi KimEmail author


Two conjugated thienopyrrolodione-thiophene-vinyl-thiophene (TPDTVT)-based polymers, with one of them having an additional cyano (CN) group attached to the TVT building block, are synthesized and incorporated in photovoltaic device as electron-donating materials. Both TPD-TVT and TPD-TVTCN showed good thermal stability and appropriate solubility in chlorinated solvents, but they exhibited quite different optoelectrochemical and photovoltaic properties. The stronger intermolecular interactions of TPD-TVTCN, compared to TPD-TVT, lead to enhanced aggregation in blends with PC71BM. The domain sizes within 15–20 nm and improved molecular packing in TPD-TVTCN:PC71BM blend films result in better photovoltaic performance of TPD-TVTCN:PC71BM device compared to the device employing TPD-TVT.


bulk heterojunction solar cells polymer solar cells polymer donors thienopyrrolodione blend morphology 


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Supplementary material

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Supporting Information


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Copyright information

© The Polymer Society of Korea and Springer Nature B.V. 2018

Authors and Affiliations

  1. 1.Department of Chemistry and RINSGyeongsang National UniversityJinjuKorea
  2. 2.POSTECH Organic Electronics Laboratory, Department of Chemical EngineeringPohang University of Science and TechnologyPohangKorea
  3. 3.Department of Materials Engineering and Convergence Technology and ERIGyeongsang National UniversityJinjuKorea
  4. 4.Department of Polymer Science & Engineering and Department of IT ConvergenceKorea National University of TransportationChungjuKorea

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