Surface smoothness and conductivity control of vapor-phase polymerized poly(3,4-ethylenedioxythiophene) thin coating for flexible optoelectronic applications

Thuy Le Truong; Dong Ouk Kim; Youngkwan Lee; Tae Woo Lee; Jong Jin Park; Lyongsun Pu; Jae Do Nam

doi:10.1016/j.tsf.2007.10.114

Surface smoothness and conductivity control of vapor-phase polymerized poly(3,4-ethylenedioxythiophene) thin coating for flexible optoelectronic applications

Thuy Le Truong, Dong Ouk Kim, Youngkwan Lee, Tae Woo Lee, Jong Jin Park, Lyongsun Pu, Jae Do Nam

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

33 Scopus citations

Abstract

The surface morphology of poly(3,4-ethylenedioxythiophene) (PEDOT) was investigated in the vapor-phase polymerization of the thiophene monomer on a flexible polyethyleneterphthalate (PET) substrate film. The PET surface was modified with ethylene diamine maintaining the surface roughness within 2 nm to create amine and amide groups for the enhanced hydrophilic interaction with Fe(III)-tosylate (Fe(OTs)₃) and for the desirable hydrogen bonding with thiophene monomer as well as PEDOT. Polymerization rate was reduced by incorporating pyridine as a reaction retardant to control the surface roughness and conductivity of PEDOT thin films. The optimal conditions of pyridine and glycerol were found at a pyridine/Fe(OTs)₃ molar ratio of 0.5 and a glycerol concentration of 4-5 wt.%, respectively, providing the conductivity up to 500 S/cm and the surface roughness < 2 nm.

Original language	English
Pages (from-to)	6020-6027
Number of pages	8
Journal	Thin Solid Films
Volume	516
Issue number	18
DOIs	https://doi.org/10.1016/j.tsf.2007.10.114
State	Published - 31 Jul 2008
Externally published	Yes

Keywords

Fe(III)-tosylate polyethyleneterphthalate
Poly(3,4-ethylenedioxythiophene)
Vapor-phase polymerization

Access to Document

10.1016/j.tsf.2007.10.114

Cite this

@article{670ef349f7aa4b38b5216757429c6637,

title = "Surface smoothness and conductivity control of vapor-phase polymerized poly(3,4-ethylenedioxythiophene) thin coating for flexible optoelectronic applications",

abstract = "The surface morphology of poly(3,4-ethylenedioxythiophene) (PEDOT) was investigated in the vapor-phase polymerization of the thiophene monomer on a flexible polyethyleneterphthalate (PET) substrate film. The PET surface was modified with ethylene diamine maintaining the surface roughness within 2 nm to create amine and amide groups for the enhanced hydrophilic interaction with Fe(III)-tosylate (Fe(OTs)3) and for the desirable hydrogen bonding with thiophene monomer as well as PEDOT. Polymerization rate was reduced by incorporating pyridine as a reaction retardant to control the surface roughness and conductivity of PEDOT thin films. The optimal conditions of pyridine and glycerol were found at a pyridine/Fe(OTs)3 molar ratio of 0.5 and a glycerol concentration of 4-5 wt.\%, respectively, providing the conductivity up to 500 S/cm and the surface roughness < 2 nm.",

keywords = "Fe(III)-tosylate polyethyleneterphthalate, Poly(3,4-ethylenedioxythiophene), Vapor-phase polymerization",

author = "Truong, \{Thuy Le\} and Kim, \{Dong Ouk\} and Youngkwan Lee and Lee, \{Tae Woo\} and Park, \{Jong Jin\} and Lyongsun Pu and Nam, \{Jae Do\}",

year = "2008",

month = jul,

day = "31",

doi = "10.1016/j.tsf.2007.10.114",

language = "English",

volume = "516",

pages = "6020--6027",

journal = "Thin Solid Films",

issn = "0040-6090",

publisher = "Elsevier B.V.",

number = "18",

}

TY - JOUR

T1 - Surface smoothness and conductivity control of vapor-phase polymerized poly(3,4-ethylenedioxythiophene) thin coating for flexible optoelectronic applications

AU - Truong, Thuy Le

AU - Kim, Dong Ouk

AU - Lee, Youngkwan

AU - Lee, Tae Woo

AU - Park, Jong Jin

AU - Pu, Lyongsun

AU - Nam, Jae Do

PY - 2008/7/31

Y1 - 2008/7/31

N2 - The surface morphology of poly(3,4-ethylenedioxythiophene) (PEDOT) was investigated in the vapor-phase polymerization of the thiophene monomer on a flexible polyethyleneterphthalate (PET) substrate film. The PET surface was modified with ethylene diamine maintaining the surface roughness within 2 nm to create amine and amide groups for the enhanced hydrophilic interaction with Fe(III)-tosylate (Fe(OTs)3) and for the desirable hydrogen bonding with thiophene monomer as well as PEDOT. Polymerization rate was reduced by incorporating pyridine as a reaction retardant to control the surface roughness and conductivity of PEDOT thin films. The optimal conditions of pyridine and glycerol were found at a pyridine/Fe(OTs)3 molar ratio of 0.5 and a glycerol concentration of 4-5 wt.%, respectively, providing the conductivity up to 500 S/cm and the surface roughness < 2 nm.

AB - The surface morphology of poly(3,4-ethylenedioxythiophene) (PEDOT) was investigated in the vapor-phase polymerization of the thiophene monomer on a flexible polyethyleneterphthalate (PET) substrate film. The PET surface was modified with ethylene diamine maintaining the surface roughness within 2 nm to create amine and amide groups for the enhanced hydrophilic interaction with Fe(III)-tosylate (Fe(OTs)3) and for the desirable hydrogen bonding with thiophene monomer as well as PEDOT. Polymerization rate was reduced by incorporating pyridine as a reaction retardant to control the surface roughness and conductivity of PEDOT thin films. The optimal conditions of pyridine and glycerol were found at a pyridine/Fe(OTs)3 molar ratio of 0.5 and a glycerol concentration of 4-5 wt.%, respectively, providing the conductivity up to 500 S/cm and the surface roughness < 2 nm.

KW - Fe(III)-tosylate polyethyleneterphthalate

KW - Poly(3,4-ethylenedioxythiophene)

KW - Vapor-phase polymerization

UR - https://www.scopus.com/pages/publications/44649092664

U2 - 10.1016/j.tsf.2007.10.114

DO - 10.1016/j.tsf.2007.10.114

M3 - Article

AN - SCOPUS:44649092664

SN - 0040-6090

VL - 516

SP - 6020

EP - 6027

JO - Thin Solid Films

JF - Thin Solid Films

IS - 18

ER -

Surface smoothness and conductivity control of vapor-phase polymerized poly(3,4-ethylenedioxythiophene) thin coating for flexible optoelectronic applications

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this