Side-chains Engineering of Conjugated Polymers toward Additive-free Non-fullerene Organic Solar Cells

Feng Liu; Dan Wang; Jun-Yu Li; Cheng-Yi Xiao; Yong-Gang Wu; Wei-Wei Li; Guang-Sheng Fu

doi:10.1007/s10118-020-2490-y

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Side-chains Engineering of Conjugated Polymers toward Additive-free Non-fullerene Organic Solar Cells

ARTICLE | Updated：2020-09-29

- Side-chains Engineering of Conjugated Polymers toward Additive-free Non-fullerene Organic Solar Cells
- Chinese Journal of Polymer Science Vol. 39, Issue 1, Pages: 43-50(2021)
- Affiliations：
  
  a.College of Physics Science & Technology, Hebei University, Baoding 071002, China
  b.Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
- Author bio：
  
  liweiwei@iccas.ac.cn (W.W.L.)
  fugs@hbu.edu.cn (G.S.F.)
- Funds：
- DOI：10.1007/s10118-020-2490-y
  CLC：
- Received：12 July 2020，
  
  Revised：2019-1-1，
  
  Accepted：31 July 2020，
  
  Online First：29 September 2020，
  
  Published：01 January 2021
- Accepted：
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Liu, F.; Wang, D.; Li, J. Y.; Xiao, C. Y.; Wu, Y. G.; Li, W. W.; Fu, G. S. Side-chains engineering of conjugated polymers toward additive-free non-fullerene organic solar cells. Chinese J. Polym. Sci. 2021, 39, 43–50

Feng Liu, Dan Wang, Jun-Yu Li, et al. Side-chains Engineering of Conjugated Polymers toward Additive-free Non-fullerene Organic Solar Cells[J]. Chinese Journal of Polymer Science, 2021, 39(1): 43-50.
Liu, F.; Wang, D.; Li, J. Y.; Xiao, C. Y.; Wu, Y. G.; Li, W. W.; Fu, G. S. Side-chains engineering of conjugated polymers toward additive-free non-fullerene organic solar cells. Chinese J. Polym. Sci. 2021, 39, 43–50 DOI： 10.1007/s10118-020-2490-y.

Feng Liu, Dan Wang, Jun-Yu Li, et al. Side-chains Engineering of Conjugated Polymers toward Additive-free Non-fullerene Organic Solar Cells[J]. Chinese Journal of Polymer Science, 2021, 39(1): 43-50. DOI： 10.1007/s10118-020-2490-y.

摘要

Abstract

Side-chain engineering plays a significant role in the design of conjugated materials. In this work

a series of conjugated polymers PBDB-T-R with functionalized groups at the end of side units were developed as electron donor for organic solar cells (OSCs). The donor polymers PBDB-T-I and PBDB-T-OAc with iodine and acetate end groups exhibited similar absorption and energy levels

but showed much improved PCEs in OSCs compared to the polymer PBDB-T-H without substitutions at the end groups. Additionally

we found that PBDB-T-I and PBDB-T-OAc based cells exhibited optimized performance when using chloroform as solution-processed solvent without any additives. These results indicate that these conjugated polymers can act as self-additive to fabricate photoactive layers

via

solution process in OSCs.

关键词

Keywords

references

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