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

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Conboy_2017_JMCC_Copolymers_CC.pdf (3.317Mb)
Date
07/12/2017
Author
Conboy, Gary
Taylor, Rupert G. D.
Findlay, Neil J.
Kanibolotsky, Alexander L.
Inigo, Anto R.
Ghosh, Sanjay S.
Ebenhoch, Bernd
Krishnan Jagadamma, Lethy
Thalluri, Gopala Krishna V. V.
Sajjad, Muhammad T.
Samuel, Ifor D. W.
Skabara, Peter J.
Keywords
QD Chemistry
DAS
Metadata
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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.
Citation
Conboy , G , Taylor , R G D , Findlay , N J , Kanibolotsky , A L , Inigo , A R , Ghosh , S S , Ebenhoch , B , Krishnan Jagadamma , L , Thalluri , G K V V , Sajjad , M T , Samuel , I D W & Skabara , P J 2017 , ' Novel 4,8-benzobisthiazole copolymers and their field-effect transistor and photovoltaic applications ' Journal of Materials Chemistry , vol 5 , no. 45 , pp. 11927-11936 . DOI: 10.1039/C7TC03959J
Publication
Journal of Materials Chemistry
Status
Peer reviewed
DOI
http://dx.doi.org/10.1039/C7TC03959J
ISSN
0959-9428
Type
Journal article
Rights
© 2017 The Authors. Open Access Article. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Description
We are grateful to the EPSRC for funding through grants C, EP/L012294/1, EP/L017008/1 and EP/L012200/1 and to the European Research Council for funding from Grant 321305. Supporting data are accessible from 10.15129/9b457e8c-12bc-4a3a-9af3-7f53474f4e5c.
Collections
  • Physics & Astronomy Research
  • University of St Andrews Research
URI
http://hdl.handle.net/10023/12302

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