Effect of molecular weight distribution of PSSA on electrical conductivity of PEDOT:PSS

Jooyoung Kim; Chanil Park; Soeun Im; Hongjoo Lee; Jung Hyun Kim

doi:10.1039/c8ra09919g

Effect of molecular weight distribution of PSSA on electrical conductivity of PEDOT:PSS

Jooyoung Kim, Chanil Park, Soeun Im, Hongjoo Lee, Jung Hyun Kim

Department of Chemical and Biomolecular Engineering

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

12 Citations (Scopus)

Abstract

Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is the most successful conductive polymer. In this study, we investigated the electrical properties of PEDOT:PSS prepared using poly(styrenesulfonic acid) (PSSA) having different molecular weight distributions. Herein PSSA with different molecular weight distributions were successfully polymerized by free radical polymerization and atom-transfer radical polymerization (ATRP). Polydispersity index values of PSSA obtained by the free radical process and ATRP process were 2.3-2.8 and 1.2-1.6 respectively. The electrical conductivity of PEDOT:PSS was enhanced from 376 S cm ⁻¹ (prepared using free radical PSSA) to 422 S cm ⁻¹ (prepared using ATRP PSSA) when PSSA of Mn 35 000 g mol ⁻¹ PSSA was used and was enhanced from 234 S cm ⁻¹ (prepared using free radical PSSA) to 325 S cm ⁻¹ (prepared using ATRP PSSA) when PSSA of Mn 55 000 g mol ⁻¹ was used, by a factor of 15-30%. The greater the regularity of PSSA, the greater the packing density of PEDOT:PSS and consequently, charge carrier density. The improvement of packing density of PEDOT:PSS was confirmed by improvement in crystallinity of PEDOT:PSS by X-ray diffraction (XRD) analysis.

Original language	English
Pages (from-to)	4028-4034
Number of pages	7
Journal	RSC Advances
Volume	9
Issue number	7
DOIs	https://doi.org/10.1039/c8ra09919g
Publication status	Published - 2019

Bibliographical note

Funding Information:
This work was supported by the Nano Material Technology Development Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (MSIP, Korea) (NRF-2014M3A7B4050960/ 2014M3A7B4051745). This research was also supported by the Priority Research Centers Program via the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2009-0093823).

Publisher Copyright:
© The Royal Society of Chemistry.

All Science Journal Classification (ASJC) codes

Chemistry(all)
Chemical Engineering(all)

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10.1039/c8ra09919g

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@article{c0c7aeaa7ae44c0596b8950a27934ac4,

title = "Effect of molecular weight distribution of PSSA on electrical conductivity of PEDOT:PSS",

abstract = " Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is the most successful conductive polymer. In this study, we investigated the electrical properties of PEDOT:PSS prepared using poly(styrenesulfonic acid) (PSSA) having different molecular weight distributions. Herein PSSA with different molecular weight distributions were successfully polymerized by free radical polymerization and atom-transfer radical polymerization (ATRP). Polydispersity index values of PSSA obtained by the free radical process and ATRP process were 2.3-2.8 and 1.2-1.6 respectively. The electrical conductivity of PEDOT:PSS was enhanced from 376 S cm −1 (prepared using free radical PSSA) to 422 S cm −1 (prepared using ATRP PSSA) when PSSA of Mn 35 000 g mol −1 PSSA was used and was enhanced from 234 S cm −1 (prepared using free radical PSSA) to 325 S cm −1 (prepared using ATRP PSSA) when PSSA of Mn 55 000 g mol −1 was used, by a factor of 15-30%. The greater the regularity of PSSA, the greater the packing density of PEDOT:PSS and consequently, charge carrier density. The improvement of packing density of PEDOT:PSS was confirmed by improvement in crystallinity of PEDOT:PSS by X-ray diffraction (XRD) analysis.",

author = "Jooyoung Kim and Chanil Park and Soeun Im and Hongjoo Lee and Kim, {Jung Hyun}",

note = "Funding Information: This work was supported by the Nano Material Technology Development Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (MSIP, Korea) (NRF-2014M3A7B4050960/ 2014M3A7B4051745). This research was also supported by the Priority Research Centers Program via the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2009-0093823). Publisher Copyright: {\textcopyright} The Royal Society of Chemistry.",

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doi = "10.1039/c8ra09919g",

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T1 - Effect of molecular weight distribution of PSSA on electrical conductivity of PEDOT:PSS

AU - Kim, Jooyoung

AU - Park, Chanil

AU - Im, Soeun

AU - Lee, Hongjoo

AU - Kim, Jung Hyun

N1 - Funding Information: This work was supported by the Nano Material Technology Development Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (MSIP, Korea) (NRF-2014M3A7B4050960/ 2014M3A7B4051745). This research was also supported by the Priority Research Centers Program via the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (2009-0093823). Publisher Copyright: © The Royal Society of Chemistry.

PY - 2019

Y1 - 2019

N2 - Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is the most successful conductive polymer. In this study, we investigated the electrical properties of PEDOT:PSS prepared using poly(styrenesulfonic acid) (PSSA) having different molecular weight distributions. Herein PSSA with different molecular weight distributions were successfully polymerized by free radical polymerization and atom-transfer radical polymerization (ATRP). Polydispersity index values of PSSA obtained by the free radical process and ATRP process were 2.3-2.8 and 1.2-1.6 respectively. The electrical conductivity of PEDOT:PSS was enhanced from 376 S cm −1 (prepared using free radical PSSA) to 422 S cm −1 (prepared using ATRP PSSA) when PSSA of Mn 35 000 g mol −1 PSSA was used and was enhanced from 234 S cm −1 (prepared using free radical PSSA) to 325 S cm −1 (prepared using ATRP PSSA) when PSSA of Mn 55 000 g mol −1 was used, by a factor of 15-30%. The greater the regularity of PSSA, the greater the packing density of PEDOT:PSS and consequently, charge carrier density. The improvement of packing density of PEDOT:PSS was confirmed by improvement in crystallinity of PEDOT:PSS by X-ray diffraction (XRD) analysis.

AB - Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is the most successful conductive polymer. In this study, we investigated the electrical properties of PEDOT:PSS prepared using poly(styrenesulfonic acid) (PSSA) having different molecular weight distributions. Herein PSSA with different molecular weight distributions were successfully polymerized by free radical polymerization and atom-transfer radical polymerization (ATRP). Polydispersity index values of PSSA obtained by the free radical process and ATRP process were 2.3-2.8 and 1.2-1.6 respectively. The electrical conductivity of PEDOT:PSS was enhanced from 376 S cm −1 (prepared using free radical PSSA) to 422 S cm −1 (prepared using ATRP PSSA) when PSSA of Mn 35 000 g mol −1 PSSA was used and was enhanced from 234 S cm −1 (prepared using free radical PSSA) to 325 S cm −1 (prepared using ATRP PSSA) when PSSA of Mn 55 000 g mol −1 was used, by a factor of 15-30%. The greater the regularity of PSSA, the greater the packing density of PEDOT:PSS and consequently, charge carrier density. The improvement of packing density of PEDOT:PSS was confirmed by improvement in crystallinity of PEDOT:PSS by X-ray diffraction (XRD) analysis.

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JO - RSC Advances

JF - RSC Advances

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ER -

Effect of molecular weight distribution of PSSA on electrical conductivity of PEDOT:PSS

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