A Low Reorganization Energy and Two-dimensional Acceptor with Four End Units for Organic Solar Cells with Low <italic style="font-style: italic">E</italic><sub>loss</sub>

Hongbin Chen; Xiangjian Cao; Xiaoyun Xu; Chenxi Li; Xiangjian Wan; Zhaoyang Yao; Yongsheng Chen

doi:10.1007/s10118-022-2730-4

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A Low Reorganization Energy and Two-dimensional Acceptor with Four End Units for Organic Solar Cells with Low E_loss

RESEARCH ARTICLE | Updated：2022-07-21

- A Low Reorganization Energy and Two-dimensional Acceptor with Four End Units for Organic Solar Cells with Low E_loss
- A Low Reorganization Energy and Two-dimensional Acceptor with Four End Units for Organic Solar Cells with Low E_loss
- Chinese Journal of Polymer Science 2022年40卷第8期页码：921-927
- Affiliations：
  
  a.State Key Laboratory and Institute of Elemento-Organic Chemistry, The Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials, Renewable Energy Conversion and Storage Center (RECAST), College of Chemistry, Nankai University, Tianjin 300071, China
  b.State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Center for Advanced Low-dimension Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
- Author bio：
  
  yschen99@nankai.edu.cn
- Funds：
  
  This work was financially supported by the National Natural Science Foundation of China (Nos. 21935007, 52025033 and 51873089) and Ministry of Science and Technology (No. 2019YFA0705900) of China, Tianjin city (No. 20JCZDJC00740) and 111 Project (No. B12015). We also acknowledge the GIWAXS measurements provided by Prof Zhixiang Wei at the National Center for Nanoscience and Technology, CAS, Beijing 100190, China. All the theoretical calculations were performed on National Supercomputer Center in Guangzhou.
- DOI：10.1007/s10118-022-2730-4
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Hongbin Chen, Xiangjian Cao, Xiaoyun Xu, 等. A Low Reorganization Energy and Two-dimensional Acceptor with Four End Units for Organic Solar Cells with Low E_loss[J]. Chinese Journal of Polymer Science, 2022,40(8):921-927.

Hongbin Chen, Xiangjian Cao, Xiaoyun Xu, et al. A Low Reorganization Energy and Two-dimensional Acceptor with Four End Units for Organic Solar Cells with Low E_loss[J]. Chinese Journal of Polymer Science, 2022,40(8):921-927.
Hongbin Chen, Xiangjian Cao, Xiaoyun Xu, 等. A Low Reorganization Energy and Two-dimensional Acceptor with Four End Units for Organic Solar Cells with Low E_loss[J]. Chinese Journal of Polymer Science, 2022,40(8):921-927. DOI： 10.1007/s10118-022-2730-4.

Hongbin Chen, Xiangjian Cao, Xiaoyun Xu, et al. A Low Reorganization Energy and Two-dimensional Acceptor with Four End Units for Organic Solar Cells with Low E_loss[J]. Chinese Journal of Polymer Science, 2022,40(8):921-927. DOI： 10.1007/s10118-022-2730-4.

摘要

A novel two-dimensional A-D-A acceptor named as CH8 with four electron-withdrawing end units has an extremely low electron reorganization energy of 98 meV. When blended with PM6, a considerate PCE of 9.37%, along with a high Voc 0.889 V and low Eloss below 0.6 eV is achieved.

Abstract

A novel two-dimensional A-D-A acceptor named as ,CH8, with four electron-withdrawing end units has been successfully designed and synthesized. The enlarged conjugation in two directions renders ,CH8, exhibit an extremely low electron reorganization energy of 98 meV, which makes ,CH8, a potential candidate for outstanding organic semiconductor material. When blended with ,PM6, a considerate power conversion efficiency of 9.37% along with a high open-circuit voltage (,V,oc,) 0.889 V and low energy loss (,E,loss,) below 0.6 eV is achieved. These results indicate that the two-dimensional A-D-A molecule with four electron-withdrawing end units is an effective molecular design strategy to achieve lower voltage loss and also possible high performance for organic photovoltaics if ideal morphology could be achieved.

关键词

Keywords

Two-dimensional A-D-A acceptorReorganization energyEnergy loss (Eloss) Organic photovoltaics

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A Low Reorganization Energy and Two-dimensional Acceptor with Four End Units for Organic Solar Cells with Low Eloss

A Low Reorganization Energy and Two-dimensional Acceptor with Four End Units for Organic Solar Cells with Low Eloss

DOI：10.1007/s10118-022-2730-4

摘要

Abstract

关键词

Keywords

references

A Low Reorganization Energy and Two-dimensional Acceptor with Four End Units for Organic Solar Cells with Low E_loss

A Low Reorganization Energy and Two-dimensional Acceptor with Four End Units for Organic Solar Cells with Low E_loss