A novel low-bandgap pyridazine thiadiazole-based conjugated polymer with deep molecular orbital levels,Polymer Chemistry

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A novel low-bandgap pyridazine thiadiazole-based conjugated polymer with deep molecular orbital levels
Polymer Chemistry ( IF 4.1 ) Pub Date : 2019-11-08 , DOI: 10.1039/c9py01137d
A. Leventis _{1,

2,

3,

4} , T. N. Chmovzh _{5,

6,

7,

8,

9} , E. A. Knyazeva _{5,

6,

7,

8,

9} , Y. Han _{10,

11,

12,

13} , M. Heeney _{4,

14,

15,

16} , O. A. Rakitin _{5,

6,

7,

8,

9} , H. Bronstein _{1,

2,

3,

4}

Affiliation

Department of Chemistry
University of Cambridge
Cambridge CB2 1EW
UK
N. D. Zelinsky Institute of Organic Chemistry
Russian Academy of Sciences
119991 Moscow
Russia
Nanotechnology Education and Research Center
School of Materials Science and Engineering and Tianjin Key Laboratory of Molecular Optoelectronic Science
Tianjin University
Tianjin
P. R. China
Centre for Plastic Electronics
Imperial College London
London SW7 2AZ

A pyridazine thiadiazole acceptor (PzT) has been utilised in the synthesis of a novel low band-gap D–A copolymer PTTPz. It is a much stronger acceptor in comparison to BT and PyT moieties widely incorporated in the literature. Experimental results reveal that per electronegative N atom that is substituted into the acceptor, an effective HOMO and LUMO stabilization energy of ∼0.2–0.1 eV can be achieved.

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