Skip to main navigation Skip to search Skip to main content

Novel 4,8-benzobisthiazole copolymers and their field-effect transistor and photovoltaic applications

Gary Conboy, Rupert G. D. Taylor, Neil J. Findlay, Alexander L. Kanibolotsky, Anto R. Inigo, Sanjay S. Ghosh, Bernd Ebenhoch, Lethy Krishnan Jagadamma, Gopala Krishna V. V. Thalluri, Muhammad T. Sajjad, Ifor D. W. Samuel, Peter J. Skabara

Research output: Contribution to journalArticlepeer-review

Abstract

A series of copolymers containing the benzo[1,2-d:4,5-d′]bis(thiazole) (BBT) unit has been designed and synthesised with bisthienyl-diketopyrrolopyrrole (DPP), dithienopyrrole (DTP), benzothiadiazole (BT), benzodithiophene (BDT) or 4,4′-dialkoxybithiazole (BTz) comonomers. The resulting polymers possess a conjugation pathway that is orthogonal to the more usual substitution pathway through the 2,6-positions of the BBT unit, facilitating intramolecular non-covalent interactions between strategically placed heteroatoms of neighbouring monomer units. Such interactions enable a control over the degree of planarity through altering their number and strength, in turn allowing for tuning of the band gap. The resulting 4,8-BBT materials gave enhanced mobility in p-type organic field-effect transistors of up to 2.16 × 10-2 cm2 V-1 s-1 for pDPP2ThBBT and good solar cell performance of up to 4.45% power conversion efficiency for pBT2ThBBT.
Original languageEnglish
Pages (from-to)11927-11936
Number of pages10
JournalJournal of Materials Chemistry
Volume5
Issue number45
Early online date13 Nov 2017
DOIs
Publication statusPublished - 7 Dec 2017

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

  1. SDG 7 - Affordable and Clean Energy
    SDG 7 Affordable and Clean Energy

Fingerprint

Dive into the research topics of 'Novel 4,8-benzobisthiazole copolymers and their field-effect transistor and photovoltaic applications'. Together they form a unique fingerprint.

Cite this