From non‐doped to dopable: The impact of methoxy functionalization on doping and thermoelectric properties of conjugated polymers
Abstract The introduction of alkoxy side chains into the backbone of conjugated polymers is an effective way to change their properties. While the impact on the structure and optoelectronic properties of polymer thin films was well‐studied in organic solar cells and transistors, limited research has...
| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2024-04-01
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| Series: | EcoMat |
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| Online Access: | https://doi.org/10.1002/eom2.12442 |
| _version_ | 1827288144038330368 |
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| author | Hansol Lee Landep Ayuningtias Hoimin Kim Jaehoon Lee Jiyun Lee Min‐Jae Kim Dongki Lee Byung Mook Weon Dong‐Am Park Nam‐Gyu Park Sung Yun Son Junki Kim Yun‐Hi Kim Boseok Kang |
| author_facet | Hansol Lee Landep Ayuningtias Hoimin Kim Jaehoon Lee Jiyun Lee Min‐Jae Kim Dongki Lee Byung Mook Weon Dong‐Am Park Nam‐Gyu Park Sung Yun Son Junki Kim Yun‐Hi Kim Boseok Kang |
| author_sort | Hansol Lee |
| collection | DOAJ |
| description | Abstract The introduction of alkoxy side chains into the backbone of conjugated polymers is an effective way to change their properties. While the impact on the structure and optoelectronic properties of polymer thin films was well‐studied in organic solar cells and transistors, limited research has been conducted on their effects on doping and thermoelectric properties. In this study, the effects of methoxy functionalization of conjugated backbones on the doping and thermoelectric properties are investigated through a comparative study of diketopyrrolopyrrole‐based conjugated polymers with and without methoxy groups (P29DPP‐BTOM and P29DPP‐BT, respectively). Methoxy‐functionalization significantly enhances doping efficiency, converting undopable pairs to dopable ones. This dramatic change is attributed to the structural changes in the polymer film caused by the methoxy groups, which increases the lamellar spacing and facilitates the incorporation of dopants within the polymer crystals. Moreover, methoxy‐functionalization is advantageous in improving the Seebeck coefficient and power factor of the doped polymers, because it induces a bimodal orientational distribution in the polymer, which contributes to the increased splitting of Fermi and charge transport levels. This study demonstrates the impact of methoxy‐functionalization of a conjugated polymer on doping behavior and thermoelectric properties, providing a guideline for designing high‐performance conjugated polymers for thermoelectric applications. |
| first_indexed | 2024-04-24T11:24:49Z |
| format | Article |
| id | doaj.art-a9733fdfd5444e1ca481739efc204128 |
| institution | Directory Open Access Journal |
| issn | 2567-3173 |
| language | English |
| last_indexed | 2024-04-24T11:24:49Z |
| publishDate | 2024-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | EcoMat |
| spelling | doaj.art-a9733fdfd5444e1ca481739efc2041282024-04-10T23:16:34ZengWileyEcoMat2567-31732024-04-0164n/an/a10.1002/eom2.12442From non‐doped to dopable: The impact of methoxy functionalization on doping and thermoelectric properties of conjugated polymersHansol Lee0Landep Ayuningtias1Hoimin Kim2Jaehoon Lee3Jiyun Lee4Min‐Jae Kim5Dongki Lee6Byung Mook Weon7Dong‐Am Park8Nam‐Gyu Park9Sung Yun Son10Junki Kim11Yun‐Hi Kim12Boseok Kang13Department of Chemical and Biological Engineering Gachon University Seongnam Republic of KoreaDepartment of Chemistry and Research Institute of Natural Science (RINS) Gyeongsang National University Jinju Republic of KoreaSKKU Advanced Institute of Nanotechnology (SAINT) and Department of Nano Science and Technology Sungkyunkwan University Suwon Republic of KoreaSKKU Advanced Institute of Nanotechnology (SAINT) and Department of Nano Science and Technology Sungkyunkwan University Suwon Republic of KoreaSKKU Advanced Institute of Nanotechnology (SAINT) and Department of Nano Science and Technology Sungkyunkwan University Suwon Republic of KoreaSKKU Advanced Institute of Nanotechnology (SAINT) and Department of Nano Science and Technology Sungkyunkwan University Suwon Republic of KoreaDepartment of Nanotechnology and Advanced Materials Engineering Sejong University Seoul Republic of KoreaSchool of Advanced Materials Science and Engineering and SKKU Advanced Institute of Nanotechnology (SAINT) Sungkyunkwan University Suwon Republic of KoreaSchool of Chemical Engineering, Center for Antibonding Regulated Crystals and SKKU Institute of Energy Science and Technology (SIEST) Sungkyunkwan University (SKKU) Suwon Republic of KoreaSchool of Chemical Engineering, Center for Antibonding Regulated Crystals and SKKU Institute of Energy Science and Technology (SIEST) Sungkyunkwan University (SKKU) Suwon Republic of KoreaDepartment of Chemistry Kwangwoon University Seoul Republic of KoreaSKKU Advanced Institute of Nanotechnology (SAINT) and Department of Nano Science and Technology Sungkyunkwan University Suwon Republic of KoreaDepartment of Chemistry and Research Institute of Natural Science (RINS) Gyeongsang National University Jinju Republic of KoreaSKKU Advanced Institute of Nanotechnology (SAINT) and Department of Nano Science and Technology Sungkyunkwan University Suwon Republic of KoreaAbstract The introduction of alkoxy side chains into the backbone of conjugated polymers is an effective way to change their properties. While the impact on the structure and optoelectronic properties of polymer thin films was well‐studied in organic solar cells and transistors, limited research has been conducted on their effects on doping and thermoelectric properties. In this study, the effects of methoxy functionalization of conjugated backbones on the doping and thermoelectric properties are investigated through a comparative study of diketopyrrolopyrrole‐based conjugated polymers with and without methoxy groups (P29DPP‐BTOM and P29DPP‐BT, respectively). Methoxy‐functionalization significantly enhances doping efficiency, converting undopable pairs to dopable ones. This dramatic change is attributed to the structural changes in the polymer film caused by the methoxy groups, which increases the lamellar spacing and facilitates the incorporation of dopants within the polymer crystals. Moreover, methoxy‐functionalization is advantageous in improving the Seebeck coefficient and power factor of the doped polymers, because it induces a bimodal orientational distribution in the polymer, which contributes to the increased splitting of Fermi and charge transport levels. This study demonstrates the impact of methoxy‐functionalization of a conjugated polymer on doping behavior and thermoelectric properties, providing a guideline for designing high‐performance conjugated polymers for thermoelectric applications.https://doi.org/10.1002/eom2.12442conjugated polymersdoping efficiencymethoxy functionalizationmolecular dopingorganic thermoelectrics |
| spellingShingle | Hansol Lee Landep Ayuningtias Hoimin Kim Jaehoon Lee Jiyun Lee Min‐Jae Kim Dongki Lee Byung Mook Weon Dong‐Am Park Nam‐Gyu Park Sung Yun Son Junki Kim Yun‐Hi Kim Boseok Kang From non‐doped to dopable: The impact of methoxy functionalization on doping and thermoelectric properties of conjugated polymers EcoMat conjugated polymers doping efficiency methoxy functionalization molecular doping organic thermoelectrics |
| title | From non‐doped to dopable: The impact of methoxy functionalization on doping and thermoelectric properties of conjugated polymers |
| title_full | From non‐doped to dopable: The impact of methoxy functionalization on doping and thermoelectric properties of conjugated polymers |
| title_fullStr | From non‐doped to dopable: The impact of methoxy functionalization on doping and thermoelectric properties of conjugated polymers |
| title_full_unstemmed | From non‐doped to dopable: The impact of methoxy functionalization on doping and thermoelectric properties of conjugated polymers |
| title_short | From non‐doped to dopable: The impact of methoxy functionalization on doping and thermoelectric properties of conjugated polymers |
| title_sort | from non doped to dopable the impact of methoxy functionalization on doping and thermoelectric properties of conjugated polymers |
| topic | conjugated polymers doping efficiency methoxy functionalization molecular doping organic thermoelectrics |
| url | https://doi.org/10.1002/eom2.12442 |
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