Hole transport enhancing effects of polar solvents on poly(3,4- ethylenedioxythiophene):poly(styrene sulfonic acid) for organic solar cells

Jeong Suk Yang, Sang Hoon Oh, Dong Lim Kim, Si Joon Kim, Hyun Jae Kim

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

This study analyzed the properties of poly(3,4-ethylenedioxythiophene): poly(styrene sulfonic acid) (PEDOT:PSS) thin-films prepared by spin-coating solutions made with the polar solvents methanol, acetone, or N,N-dimethylformamide (DMF). A characteristic analysis was carried out for poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl C 61-butyric acid methyl ester (PCBM)-based organic solar cells (OSCs) having these modified PEDOT:PSS thin-films as the hole transport layer. The resistivity of the PEDOT:PSS thin-film obtained from the DMF solution was 4.89 × 10 -3 ω̇cm with a roughness of 3.23 × 10° nm, compared to 3.51 × 10 -1 ω̇cm and 7.72 × 10 -1 nm for a pristine PEDOT:PSS thin-film. The dipole moment increase of the solvent led to the decreased resistivity and the increased roughness and transparency of PEDOT:PSS thin-films on the structural arrangement of the polymers. Highly efficient OSCs with a power conversion efficiency of 3.47% were obtained when DMF-treated PEDOT:PSS thin-film was used as the hole transport layer.

Original languageEnglish
Pages (from-to)5394-5398
Number of pages5
JournalACS Applied Materials and Interfaces
Volume4
Issue number10
DOIs
Publication statusPublished - 2012 Oct 24

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Styrene
Sulfonic Acids
Thin films
Dimethylformamide
Acids
Surface roughness
Butyric acid
Butyric Acid
Dipole moment
Spin coating
Acetone
Transparency
Conversion efficiency
Methanol
Organic solar cells
poly(3,4-ethylene dioxythiophene)
Esters
Polymers

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

Cite this

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title = "Hole transport enhancing effects of polar solvents on poly(3,4- ethylenedioxythiophene):poly(styrene sulfonic acid) for organic solar cells",
abstract = "This study analyzed the properties of poly(3,4-ethylenedioxythiophene): poly(styrene sulfonic acid) (PEDOT:PSS) thin-films prepared by spin-coating solutions made with the polar solvents methanol, acetone, or N,N-dimethylformamide (DMF). A characteristic analysis was carried out for poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl C 61-butyric acid methyl ester (PCBM)-based organic solar cells (OSCs) having these modified PEDOT:PSS thin-films as the hole transport layer. The resistivity of the PEDOT:PSS thin-film obtained from the DMF solution was 4.89 × 10 -3 ω̇cm with a roughness of 3.23 × 10° nm, compared to 3.51 × 10 -1 ω̇cm and 7.72 × 10 -1 nm for a pristine PEDOT:PSS thin-film. The dipole moment increase of the solvent led to the decreased resistivity and the increased roughness and transparency of PEDOT:PSS thin-films on the structural arrangement of the polymers. Highly efficient OSCs with a power conversion efficiency of 3.47{\%} were obtained when DMF-treated PEDOT:PSS thin-film was used as the hole transport layer.",
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Hole transport enhancing effects of polar solvents on poly(3,4- ethylenedioxythiophene):poly(styrene sulfonic acid) for organic solar cells. / Yang, Jeong Suk; Oh, Sang Hoon; Kim, Dong Lim; Kim, Si Joon; Kim, Hyun Jae.

In: ACS Applied Materials and Interfaces, Vol. 4, No. 10, 24.10.2012, p. 5394-5398.

Research output: Contribution to journalArticle

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AB - This study analyzed the properties of poly(3,4-ethylenedioxythiophene): poly(styrene sulfonic acid) (PEDOT:PSS) thin-films prepared by spin-coating solutions made with the polar solvents methanol, acetone, or N,N-dimethylformamide (DMF). A characteristic analysis was carried out for poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl C 61-butyric acid methyl ester (PCBM)-based organic solar cells (OSCs) having these modified PEDOT:PSS thin-films as the hole transport layer. The resistivity of the PEDOT:PSS thin-film obtained from the DMF solution was 4.89 × 10 -3 ω̇cm with a roughness of 3.23 × 10° nm, compared to 3.51 × 10 -1 ω̇cm and 7.72 × 10 -1 nm for a pristine PEDOT:PSS thin-film. The dipole moment increase of the solvent led to the decreased resistivity and the increased roughness and transparency of PEDOT:PSS thin-films on the structural arrangement of the polymers. Highly efficient OSCs with a power conversion efficiency of 3.47% were obtained when DMF-treated PEDOT:PSS thin-film was used as the hole transport layer.

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