Benzotriazole Based 2D-conjugated Polymer Donors for High Performance Polymer Solar Cells

Zhi-Guo Zhang; Yang Bai; Yongfang Li

doi:10.1007/s10118-020-2496-5

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Benzotriazole Based 2D-conjugated Polymer Donors for High Performance Polymer Solar Cells

FEATURE ARTICLE | Updated：2020-10-15

- Benzotriazole Based 2D-conjugated Polymer Donors for High Performance Polymer Solar Cells
- Chinese Journal of Polymer Science Vol. 39, Issue 1, Pages: 1-13(2021)
- Affiliations：
  
  a.State Key Laboratory of Chemical Resource Engineering, Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
  b.Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
  c.Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China
- Author bio：
  
  zgzhangwhu@iccas.ac.cn (Z.G.Z.)
  liyf@iccas.ac.cn (Y.L.)
- Funds：
- DOI：10.1007/s10118-020-2496-5
  CLC：
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Zhi-Guo Zhang, Yang Bai, Yongfang Li. Benzotriazole Based 2D-conjugated Polymer Donors for High Performance Polymer Solar Cells. [J]. Chinese Journal of Polymer Science 39(1):1-13(2021)
DOI：

Zhi-Guo Zhang, Yang Bai, Yongfang Li. Benzotriazole Based 2D-conjugated Polymer Donors for High Performance Polymer Solar Cells. [J]. Chinese Journal of Polymer Science 39(1):1-13(2021) DOI： 10.1007/s10118-020-2496-5.

摘要

Abstract

To design high efficiency polymer solar cells (PSCs), it is of great importance to develop suitable polymer donors that work well with the low bandgap acceptors, providing complementary absorption, forming interpenetrating networks in the active layers and minimizing energy loss. Recently, we developed a series of two-dimension-conjugated polymers based on bithienylbenzodithiophene-,alt,-benzotriazole backbone bearing different conjugated side chains, generally called ,J,-series polymers. They are medium energy bandgap (,E,g,) polymers (,E,g, of ,ca,. 1.80 eV) with strong absorptions in the range of 400−650 nm, and exhibit ordered crystalline structures, high hole mobilities, and more interestingly, tunable energy levels depending on the structure variations. In this feature article, we highlight our recent efforts on the design and synthesis of those ,J,-series polymer donors, including an introduction on the polymer design strategy and emphasis on the crucial function of differential conjugated side chain. Finally, the future opportunities and challenges of the ,J,-series polymers in PSCs are discussed.

关键词

Keywords

Polymer solar cellsBenzotriazole based 2D-conjugated polymerJ-series polymers

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