Thienopyrazine or Dithiadiazatrindene Containing Low Band Gap Conjugated Polymers for Polymer Solar Cells

Mukhamed L. Keshtov; Dmitry V. Marochkin; Ying-ying Fu; Zhi-yuan Xie; Yan-hou Geng; Vitaly S. Kochurov; Alexei R. Khokhlov

doi:10.1007/s10118-014-1458-1

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Thienopyrazine or Dithiadiazatrindene Containing Low Band Gap Conjugated Polymers for Polymer Solar Cells

Updated：2021-06-21

- Thienopyrazine or Dithiadiazatrindene Containing Low Band Gap Conjugated Polymers for Polymer Solar Cells
- Chinese Journal of Polymer Science Vol. 32, Issue 7, Pages: 844-853(2014)
- Affiliations：
  
  a.A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 119991, GSP-1, Moscow, V-334, Vavilova St. 28, Russia
  b.State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
  c.Lomonosov Moscow State University, Faculty of Physics 119991, Moscow, GSP-1, 1-2 Leninskiye Gory Russia
- Author bio：
  
  **M.L. Keshtov, E-mail: keshtov@ineos.ac.ru
  Yan-hou Geng (耿延候), E-mail: yhgeng@ciac.ac.cn
- Funds：
- DOI：10.1007/s10118-014-1458-1
  CLC：
- Received：29 September 2013，
  
  Revised：2013-12-20，
  
  Accepted：24 December 2013，
  
  Published：2014-07
- Accepted：
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Mukhamed L. Keshtov, Dmitry V. Marochkin, Ying-ying Fu, et al. Thienopyrazine or Dithiadiazatrindene Containing Low Band Gap Conjugated Polymers for Polymer Solar Cells[J]. Chinese Journal of Polymer Science, 2014, 32(7): 844-853.
DOI：

Mukhamed L. Keshtov, Dmitry V. Marochkin, Ying-ying Fu, et al. Thienopyrazine or Dithiadiazatrindene Containing Low Band Gap Conjugated Polymers for Polymer Solar Cells[J]. Chinese Journal of Polymer Science, 2014, 32(7): 844-853. DOI： 10.1007/s10118-014-1458-1.

摘要

Abstract

Four new low-band-gap alternating copolymers (

P-1

P-2

P-3

and

P-4

) based on electron-rich benzodithiophene and newly developed electron-deficient units

thienopyrazine or dithiadiazatrindene derivatives

were synthesized by Stille polycondensation. All polymers exhibit good solubility in common organic solvents and a broad absorption band in the visible to near-infrared regions. The film optical band gaps of the polymers are in the range of 1.28−2.07 eV and the highest occupied molecular orbital (HOMO) energy levels are in the range of −4.99 eV to −5.28 eV. Bulk heterojunction polymer solar cells (PSCs) of the polymers were fabricated with phenyl-C

-butyric acid methyl ester (PC

BM) as acceptor material

and a power conversion efficiency of 0.80% was realized with

P-1

as donor material.

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