Acceptor-acceptor-type Organoboron Conjugated Polymers: Effect of Backbone Configuration on Thermoelectric Performance

Chang-Shuai Dong; Bin Meng; Jun Liu; Li-Xiang Wang

doi:10.1007/s10118-022-2815-0

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Acceptor-acceptor-type Organoboron Conjugated Polymers: Effect of Backbone Configuration on Thermoelectric Performance

RESEARCH ARTICLE | Updated：2022-12-19

- Acceptor-acceptor-type Organoboron Conjugated Polymers: Effect of Backbone Configuration on Thermoelectric Performance
- Chinese Journal of Polymer Science Vol. 41, Issue 1, Pages: 108-116(2023)
- Affiliations：
  
  a.State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
  b.University of Science and Technology of China, Hefei 230026, China
- Author bio：
  
  mengbin@ciac.ac.cn (B.M.)
  liujun@ciac.ac.cn (J.L.)
- Funds：
- DOI：10.1007/s10118-022-2815-0
  CLC：
- Received：28 March 2022，
  
  Revised：2022-5-15，
  
  Accepted：24 May 2022，
  
  Online First：05 September 2022，
  
  Published：01 January 2023
- Accepted：
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Dong, C. S.; Meng, B.; Liu, J.; Wang, L. X. Acceptor-acceptor-type organoboron conjugated polymers: effect of backbone configuration on thermoelectric performance. Chinese J. Polym. Sci. 2023, 41, 108–116

Chang-Shuai Dong, Bin Meng, Jun Liu, et al. Acceptor-acceptor-type Organoboron Conjugated Polymers: Effect of Backbone Configuration on Thermoelectric Performance[J]. Chinese Journal of Polymer Science, 2023, 41(1): 108-116.
Dong, C. S.; Meng, B.; Liu, J.; Wang, L. X. Acceptor-acceptor-type organoboron conjugated polymers: effect of backbone configuration on thermoelectric performance. Chinese J. Polym. Sci. 2023, 41, 108–116 DOI： 10.1007/s10118-022-2815-0.

Chang-Shuai Dong, Bin Meng, Jun Liu, et al. Acceptor-acceptor-type Organoboron Conjugated Polymers: Effect of Backbone Configuration on Thermoelectric Performance[J]. Chinese Journal of Polymer Science, 2023, 41(1): 108-116. DOI： 10.1007/s10118-022-2815-0.

摘要

Based on double B←N bridged bipyridine (BNBP) unit and oligomeric thieno[3

]pyrrole-4

6-dione (TPD) units

three acceptor-acceptor type organoboron polymers with different backbone configuration were developed. The pseudo-straight backbone configuration imparts the resultant polymer with much enhanced crystallinity and electron mobility

and thus leading to a superior thermolelectric power factor.

Abstract

The development of n-type polymer thermoelectrics lags far behind that of p-type ones in view of material diversity and performance. New structural insights into the thermoelectric performance are needed for efficient n-type polymer thermoelectric materials. Herein

we developed three acceptor-acceptor type organoboron polymers and investigated the effect of backbone configuration on thermoelectric performance. The three polymers are designed based on double B←N bridged bipyridine (BNBP) unit with monomeric thieno[3

]pyrrole-4

6-dione (TPD)

TPD dimer and TPD trimer as the copolymerizing units

respectively. The three polymers show similar low LUMO energy levels but different backbone configuration. Compared with the wavy backbone configuration

the pseudo-straight backbone configuration imparts the polymer with much enhanced crystallinity and electron mobility. As a result

after n-doping

the polymer with pseudo-straight configuration shows much higher electronic conductivity and power factor. We think these findings could serve as important guidelines for molecular design toward efficient n-type polymer thermoelectric materials.

关键词

Keywords

references

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