Polypyrrole/MWCNT-gr-PSSA composite for flexible and highly conductive transparent film

Tae Hwan Lim, Kyung Wha Oh, Seong Hun Kim

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

This study compares the properties of a highly conductive polymer based on polypyrrole and multiwall carbon nanotubes (MWCNTs) grafted with poly (styrenesulfonic acid) (PPy/MWCNT-gr-PSSA) prepared for flexible indium tin oxide-free organic solar cell (OSC) anode with those of PH500 poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT: PSS) in various solvents. Hydrophilic poly(styrenesulfonic acid) (PSSA) was grafted on the MWCNT surfaces to improve dispersion of the MWCNT in an aqueous solution. MWCNT-gr-PSSA was added because MWCNT acts as a conductive additive and a template for the polymerization of PPy. Polymerization yields increased as the amount of MWCNT-gr-PSSA increased and reached a maximum when 50% of MWCNT-gr-PSSA was added. The conductivity of PPy/MWCNT-gr-PSSA composite was further improved and the value reached ∼ 152 S/cm with the addition of a toluenesulfonic acid (TSA)/HCl dopant mixture. To prepare a flexible OSC anode, PPy/MWCNT-gr-PSSA dissolved in solvent mixture, was coated onto a polyethylene terephthalate (PET) substrate. PPy/MWCNT-gr-PSSA was dissolved in a mixture of solvents including DMSO, NMP, EG, DEG, and glycerol of a high boiling point that was spin coated onto the PET, then annealed for 30 min at various temperatures. The conductivity of PPy/MWCNT-gr-PSSA was further enhanced with solvent treatment and annealing at temperature ranges of 100-175°C. Under optimum conditions, the conductivity and transmittance of PPy/MWCNT-gr-PSSA on PET reached 602 S/cm and 84% at 550 nm, respectively. In addition, it was confirmed that the energy level and mechanical strength of the film were suitable for OSC electrode use.

Original languageEnglish
Pages (from-to)388-397
Number of pages10
JournalJournal of Applied Polymer Science
Volume123
Issue number1
DOIs
StatePublished - 2012 Jan 5

Fingerprint

Carbon Nanotubes
Polypyrroles
Carbon nanotubes
Acids
Composite materials
Polyethylene Terephthalates
Polyethylene terephthalates
polypyrrole
Anodes
Polymerization
Boiling point
Dimethyl Sulfoxide
Tin oxides
Glycerol
Indium
Electron energy levels
Strength of materials
Polymers

Keywords

  • anode
  • conductivity
  • MWCNT
  • organic solar cells
  • polypyrrole

Cite this

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title = "Polypyrrole/MWCNT-gr-PSSA composite for flexible and highly conductive transparent film",
abstract = "This study compares the properties of a highly conductive polymer based on polypyrrole and multiwall carbon nanotubes (MWCNTs) grafted with poly (styrenesulfonic acid) (PPy/MWCNT-gr-PSSA) prepared for flexible indium tin oxide-free organic solar cell (OSC) anode with those of PH500 poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT: PSS) in various solvents. Hydrophilic poly(styrenesulfonic acid) (PSSA) was grafted on the MWCNT surfaces to improve dispersion of the MWCNT in an aqueous solution. MWCNT-gr-PSSA was added because MWCNT acts as a conductive additive and a template for the polymerization of PPy. Polymerization yields increased as the amount of MWCNT-gr-PSSA increased and reached a maximum when 50{\%} of MWCNT-gr-PSSA was added. The conductivity of PPy/MWCNT-gr-PSSA composite was further improved and the value reached ∼ 152 S/cm with the addition of a toluenesulfonic acid (TSA)/HCl dopant mixture. To prepare a flexible OSC anode, PPy/MWCNT-gr-PSSA dissolved in solvent mixture, was coated onto a polyethylene terephthalate (PET) substrate. PPy/MWCNT-gr-PSSA was dissolved in a mixture of solvents including DMSO, NMP, EG, DEG, and glycerol of a high boiling point that was spin coated onto the PET, then annealed for 30 min at various temperatures. The conductivity of PPy/MWCNT-gr-PSSA was further enhanced with solvent treatment and annealing at temperature ranges of 100-175°C. Under optimum conditions, the conductivity and transmittance of PPy/MWCNT-gr-PSSA on PET reached 602 S/cm and 84{\%} at 550 nm, respectively. In addition, it was confirmed that the energy level and mechanical strength of the film were suitable for OSC electrode use.",
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Polypyrrole/MWCNT-gr-PSSA composite for flexible and highly conductive transparent film. / Lim, Tae Hwan; Oh, Kyung Wha; Kim, Seong Hun.

In: Journal of Applied Polymer Science, Vol. 123, No. 1, 05.01.2012, p. 388-397.

Research output: Contribution to journalArticle

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AB - This study compares the properties of a highly conductive polymer based on polypyrrole and multiwall carbon nanotubes (MWCNTs) grafted with poly (styrenesulfonic acid) (PPy/MWCNT-gr-PSSA) prepared for flexible indium tin oxide-free organic solar cell (OSC) anode with those of PH500 poly(3,4-ethylenedioxythiophene): poly(styrenesulfonate) (PEDOT: PSS) in various solvents. Hydrophilic poly(styrenesulfonic acid) (PSSA) was grafted on the MWCNT surfaces to improve dispersion of the MWCNT in an aqueous solution. MWCNT-gr-PSSA was added because MWCNT acts as a conductive additive and a template for the polymerization of PPy. Polymerization yields increased as the amount of MWCNT-gr-PSSA increased and reached a maximum when 50% of MWCNT-gr-PSSA was added. The conductivity of PPy/MWCNT-gr-PSSA composite was further improved and the value reached ∼ 152 S/cm with the addition of a toluenesulfonic acid (TSA)/HCl dopant mixture. To prepare a flexible OSC anode, PPy/MWCNT-gr-PSSA dissolved in solvent mixture, was coated onto a polyethylene terephthalate (PET) substrate. PPy/MWCNT-gr-PSSA was dissolved in a mixture of solvents including DMSO, NMP, EG, DEG, and glycerol of a high boiling point that was spin coated onto the PET, then annealed for 30 min at various temperatures. The conductivity of PPy/MWCNT-gr-PSSA was further enhanced with solvent treatment and annealing at temperature ranges of 100-175°C. Under optimum conditions, the conductivity and transmittance of PPy/MWCNT-gr-PSSA on PET reached 602 S/cm and 84% at 550 nm, respectively. In addition, it was confirmed that the energy level and mechanical strength of the film were suitable for OSC electrode use.

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