Effect of Side Chain Substituent Volume on Thermoelectric Properties of IDT-Based Conjugated Polymers

A p-type thermoelectric conjugated polymer based on indacenodithiophene and benzothiadiazole is designed and synthesized by replacing normal aliphatic side chains (<b>P1</b>) with conjugated aromatic benzene substituents (<b>P2</b>). The introduced bulky substituent on <b&...

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Main Authors: De-Xun Xie, Tong-Chao Liu, Jing Xiao, Jing-Kun Fang, Cheng-Jun Pan, Guang Shao
Format: Article
Language:English
Published: MDPI AG 2021-02-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/26/4/963
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author De-Xun Xie
Tong-Chao Liu
Jing Xiao
Jing-Kun Fang
Cheng-Jun Pan
Guang Shao
author_facet De-Xun Xie
Tong-Chao Liu
Jing Xiao
Jing-Kun Fang
Cheng-Jun Pan
Guang Shao
author_sort De-Xun Xie
collection DOAJ
description A p-type thermoelectric conjugated polymer based on indacenodithiophene and benzothiadiazole is designed and synthesized by replacing normal aliphatic side chains (<b>P1</b>) with conjugated aromatic benzene substituents (<b>P2</b>). The introduced bulky substituent on <b>P2</b> is detrimental to form the intensified packing of polymers, therefore, it hinders the efficient transporting of the charge carriers, eventually resulting in a lower conductivity compared to that of the polymers bearing aliphatic side chains (<b>P1</b>). These results reveal that the modification of side chains on conjugated polymers is crucial to rationally designed thermoelectric polymers with high performance.
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spelling doaj.art-47617371a2094e2286db8cc337f4a90b2023-12-11T16:47:49ZengMDPI AGMolecules1420-30492021-02-0126496310.3390/molecules26040963Effect of Side Chain Substituent Volume on Thermoelectric Properties of IDT-Based Conjugated PolymersDe-Xun Xie0Tong-Chao Liu1Jing Xiao2Jing-Kun Fang3Cheng-Jun Pan4Guang Shao5School of Chemistry, Sun Yat-sen University, Guangzhou 510275, ChinaShenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, ChinaSchool of Chemistry, Sun Yat-sen University, Guangzhou 510275, ChinaSchool of Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, ChinaShenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University, Shenzhen 518060, ChinaSchool of Chemistry, Sun Yat-sen University, Guangzhou 510275, ChinaA p-type thermoelectric conjugated polymer based on indacenodithiophene and benzothiadiazole is designed and synthesized by replacing normal aliphatic side chains (<b>P1</b>) with conjugated aromatic benzene substituents (<b>P2</b>). The introduced bulky substituent on <b>P2</b> is detrimental to form the intensified packing of polymers, therefore, it hinders the efficient transporting of the charge carriers, eventually resulting in a lower conductivity compared to that of the polymers bearing aliphatic side chains (<b>P1</b>). These results reveal that the modification of side chains on conjugated polymers is crucial to rationally designed thermoelectric polymers with high performance.https://www.mdpi.com/1420-3049/26/4/963organic thermoelectric materialsconjugated polymerspower factor
spellingShingle De-Xun Xie
Tong-Chao Liu
Jing Xiao
Jing-Kun Fang
Cheng-Jun Pan
Guang Shao
Effect of Side Chain Substituent Volume on Thermoelectric Properties of IDT-Based Conjugated Polymers
Molecules
organic thermoelectric materials
conjugated polymers
power factor
title Effect of Side Chain Substituent Volume on Thermoelectric Properties of IDT-Based Conjugated Polymers
title_full Effect of Side Chain Substituent Volume on Thermoelectric Properties of IDT-Based Conjugated Polymers
title_fullStr Effect of Side Chain Substituent Volume on Thermoelectric Properties of IDT-Based Conjugated Polymers
title_full_unstemmed Effect of Side Chain Substituent Volume on Thermoelectric Properties of IDT-Based Conjugated Polymers
title_short Effect of Side Chain Substituent Volume on Thermoelectric Properties of IDT-Based Conjugated Polymers
title_sort effect of side chain substituent volume on thermoelectric properties of idt based conjugated polymers
topic organic thermoelectric materials
conjugated polymers
power factor
url https://www.mdpi.com/1420-3049/26/4/963
work_keys_str_mv AT dexunxie effectofsidechainsubstituentvolumeonthermoelectricpropertiesofidtbasedconjugatedpolymers
AT tongchaoliu effectofsidechainsubstituentvolumeonthermoelectricpropertiesofidtbasedconjugatedpolymers
AT jingxiao effectofsidechainsubstituentvolumeonthermoelectricpropertiesofidtbasedconjugatedpolymers
AT jingkunfang effectofsidechainsubstituentvolumeonthermoelectricpropertiesofidtbasedconjugatedpolymers
AT chengjunpan effectofsidechainsubstituentvolumeonthermoelectricpropertiesofidtbasedconjugatedpolymers
AT guangshao effectofsidechainsubstituentvolumeonthermoelectricpropertiesofidtbasedconjugatedpolymers