New π-Conjugated polymers containing 4H,4′H-[1,1′-Bithieno [3,4-C]Pyrrole]-4,4′,6,6′(5H,5′H)-Tetraone (biTPD) units and their application to thin-Film transistors and photovoltaic cells

Dae Hee Lee, Kyung Hwan Kim, Jicheol Shin, Min Ju Cho, Dong Hoon Choi

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

We successfully synthesized new D-A copolymers that employ 1,10-bithienopyrrolodione (biTPD), thiophene, and selenophene-based donor monomeric units. Two polymers, PBTPDEBT and PBTPDEBS, exhibited high degrees of crystallinity and unique polymer chain arrangements on the substrate, which is attributed to their enhanced coplanarity and intermolecular interactions between the polymer chains. Among the thin-film transistor devices made of PBTPDEBT and PBTPDEBS, the annealed PBTPDEBS device displayed relatively high hole mobility, which was twice that of the PBTPDEBT-based device. In addition, an organic photovoltaic device based on a PBTPDEBS:PC71BM blend displayed the maximum power conversion efficiency of 3.85%.

Original languageEnglish
Pages (from-to)1228-1235
Number of pages8
JournalJournal of Polymer Science, Part A: Polymer Chemistry
Volume54
Issue number9
DOIs
Publication statusPublished - 2016 May 1

Keywords

  • charge transport
  • conjugated polymers
  • high performance polymers

ASJC Scopus subject areas

  • Materials Chemistry
  • Polymers and Plastics
  • Organic Chemistry

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