Enhancing dopant diffusion for ultrahigh electrical conductivity and efficient thermoelectric conversion in conjugated polymers

Sang Eun Yoon; Yeongkwon Kang; Jaemin Im; Jiyun Lee; Sang Yeon Lee; Jaehong Park; Yuan Jun Gao; Dohyeon Jeon; Ji Yoen Son; Jisu Kim; Christina J. Kousseff; Taekyeong Kim; Hyungtak Seo; Keehoon Kang; Iain McCulloch; Sang Kyu Kwak; Hyun Ho Choi; Bong Gi Kim; Jong H. Kim

doi:10.1016/j.joule.2023.09.002

Enhancing dopant diffusion for ultrahigh electrical conductivity and efficient thermoelectric conversion in conjugated polymers

Sang Eun Yoon, Yeongkwon Kang, Jaemin Im, Jiyun Lee, Sang Yeon Lee, Jaehong Park, Yuan Jun Gao, Dohyeon Jeon, Ji Yoen Son, Jisu Kim, Christina J. Kousseff, Taekyeong Kim, Hyungtak Seo, Keehoon Kang, Iain McCulloch, Sang Kyu Kwak, Hyun Ho Choi, Bong Gi Kim, Jong H. Kim

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Organic thermoelectric (TE) attracts considerable interest as a next-generation energy conversion technology; however, its practical application is still restricted by low power factors. Herein, we report a generally applicable solvent-combination doping method for improving TE properties of conjugated polymers (CPs). Residual solvents in a ternary solvent enlarged the free volume in the CP films. This beneficial effect boosted both dopant diffusion efficiency and charge carrier density in the doped films, resulting in the remarkable enhancement of electrical conductivity in the CPs. When the doped CP films processed with a ternary solvent were applied to TE devices, excellent power factors were achieved, attributed to a durable Seebeck coefficient along with ultrahigh electrical conductivity.

Original language	English (US)
Pages (from-to)	2291-2317
Number of pages	27
Journal	Joule
Volume	7
Issue number	10
DOIs	https://doi.org/10.1016/j.joule.2023.09.002
State	Published - Oct 18 2023
Externally published	Yes

All Science Journal Classification (ASJC) codes

General Energy

Keywords

conjugated polymers
dopant diffusion
molecular doping
organic thermoelectric
power factor
semi-metallic electrical conductivity
solvent combination

Access to Document

10.1016/j.joule.2023.09.002

Cite this

Yoon, S. E., Kang, Y., Im, J., Lee, J., Lee, S. Y., Park, J., Gao, Y. J., Jeon, D., Son, J. Y., Kim, J., Kousseff, C. J., Kim, T., Seo, H., Kang, K., McCulloch, I., Kwak, S. K., Choi, H. H., Kim, B. G., & Kim, J. H. (2023). Enhancing dopant diffusion for ultrahigh electrical conductivity and efficient thermoelectric conversion in conjugated polymers. Joule, 7(10), 2291-2317. https://doi.org/10.1016/j.joule.2023.09.002

@article{1c01f248356f45c19c566babc082f913,

title = "Enhancing dopant diffusion for ultrahigh electrical conductivity and efficient thermoelectric conversion in conjugated polymers",

abstract = "Organic thermoelectric (TE) attracts considerable interest as a next-generation energy conversion technology; however, its practical application is still restricted by low power factors. Herein, we report a generally applicable solvent-combination doping method for improving TE properties of conjugated polymers (CPs). Residual solvents in a ternary solvent enlarged the free volume in the CP films. This beneficial effect boosted both dopant diffusion efficiency and charge carrier density in the doped films, resulting in the remarkable enhancement of electrical conductivity in the CPs. When the doped CP films processed with a ternary solvent were applied to TE devices, excellent power factors were achieved, attributed to a durable Seebeck coefficient along with ultrahigh electrical conductivity.",

keywords = "conjugated polymers, dopant diffusion, molecular doping, organic thermoelectric, power factor, semi-metallic electrical conductivity, solvent combination",

author = "Yoon, {Sang Eun} and Yeongkwon Kang and Jaemin Im and Jiyun Lee and Lee, {Sang Yeon} and Jaehong Park and Gao, {Yuan Jun} and Dohyeon Jeon and Son, {Ji Yoen} and Jisu Kim and Kousseff, {Christina J.} and Taekyeong Kim and Hyungtak Seo and Keehoon Kang and Iain McCulloch and Kwak, {Sang Kyu} and Choi, {Hyun Ho} and Kim, {Bong Gi} and Kim, {Jong H.}",

note = "Publisher Copyright: {\textcopyright} 2023 The Author(s)",

year = "2023",

month = oct,

day = "18",

doi = "10.1016/j.joule.2023.09.002",

language = "English (US)",

volume = "7",

pages = "2291--2317",

journal = "Joule",

issn = "2542-4351",

publisher = "Cell Press",

number = "10",

}

Yoon, SE, Kang, Y, Im, J, Lee, J, Lee, SY, Park, J, Gao, YJ, Jeon, D, Son, JY, Kim, J, Kousseff, CJ, Kim, T, Seo, H, Kang, K, McCulloch, I, Kwak, SK, Choi, HH, Kim, BG & Kim, JH 2023, 'Enhancing dopant diffusion for ultrahigh electrical conductivity and efficient thermoelectric conversion in conjugated polymers', Joule, vol. 7, no. 10, pp. 2291-2317. https://doi.org/10.1016/j.joule.2023.09.002

TY - JOUR

T1 - Enhancing dopant diffusion for ultrahigh electrical conductivity and efficient thermoelectric conversion in conjugated polymers

AU - Yoon, Sang Eun

AU - Kang, Yeongkwon

AU - Im, Jaemin

AU - Lee, Jiyun

AU - Lee, Sang Yeon

AU - Park, Jaehong

AU - Gao, Yuan Jun

AU - Jeon, Dohyeon

AU - Son, Ji Yoen

AU - Kim, Jisu

AU - Kousseff, Christina J.

AU - Kim, Taekyeong

AU - Seo, Hyungtak

AU - Kang, Keehoon

AU - McCulloch, Iain

AU - Kwak, Sang Kyu

AU - Choi, Hyun Ho

AU - Kim, Bong Gi

AU - Kim, Jong H.

PY - 2023/10/18

Y1 - 2023/10/18

N2 - Organic thermoelectric (TE) attracts considerable interest as a next-generation energy conversion technology; however, its practical application is still restricted by low power factors. Herein, we report a generally applicable solvent-combination doping method for improving TE properties of conjugated polymers (CPs). Residual solvents in a ternary solvent enlarged the free volume in the CP films. This beneficial effect boosted both dopant diffusion efficiency and charge carrier density in the doped films, resulting in the remarkable enhancement of electrical conductivity in the CPs. When the doped CP films processed with a ternary solvent were applied to TE devices, excellent power factors were achieved, attributed to a durable Seebeck coefficient along with ultrahigh electrical conductivity.

AB - Organic thermoelectric (TE) attracts considerable interest as a next-generation energy conversion technology; however, its practical application is still restricted by low power factors. Herein, we report a generally applicable solvent-combination doping method for improving TE properties of conjugated polymers (CPs). Residual solvents in a ternary solvent enlarged the free volume in the CP films. This beneficial effect boosted both dopant diffusion efficiency and charge carrier density in the doped films, resulting in the remarkable enhancement of electrical conductivity in the CPs. When the doped CP films processed with a ternary solvent were applied to TE devices, excellent power factors were achieved, attributed to a durable Seebeck coefficient along with ultrahigh electrical conductivity.

KW - conjugated polymers

KW - dopant diffusion

KW - molecular doping

KW - organic thermoelectric

KW - power factor

KW - semi-metallic electrical conductivity

KW - solvent combination

UR - http://www.scopus.com/inward/record.url?scp=85173208088&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85173208088&partnerID=8YFLogxK

U2 - 10.1016/j.joule.2023.09.002

DO - 10.1016/j.joule.2023.09.002

M3 - Article

AN - SCOPUS:85173208088

SN - 2542-4351

VL - 7

SP - 2291

EP - 2317

JO - Joule

JF - Joule

IS - 10

ER -

Enhancing dopant diffusion for ultrahigh electrical conductivity and efficient thermoelectric conversion in conjugated polymers

Abstract

All Science Journal Classification (ASJC) codes

Keywords

Access to Document

Other files and links

Fingerprint

Cite this