Surface smoothness and conductivity control of vapor-phase polymerized poly(3,4-ethylenedioxythiophene) thin coating for flexible optoelectronic applications
SCIE
SCOPUS
- Title
- Surface smoothness and conductivity control of vapor-phase polymerized poly(3,4-ethylenedioxythiophene) thin coating for flexible optoelectronic applications
- Authors
- Le Truong, T; Kim, DO; Lee, Y; Lee, TW; Park, JJ; Pu, L; Nam, JD
- Date Issued
- 2008-07-31
- Publisher
- ELSEVIER SCIENCE SA
- 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. (c) 2007 Elsevier B.V. All rights reserved.
- Keywords
- poly(3,4-ethylenedioxythiophene); vapor-phase polymerization; Fe(III)-tosylate polyethyleneterphthalate; LIGHT-EMITTING-DIODES; FILMS; TRANSPARENT; ENHANCEMENT; DERIVATIVES; TRANSISTORS; ELECTRODES; DEPOSITION; DEVICES
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/28854
- DOI
- 10.1016/J.TSF.2007.1
- ISSN
- 0040-6090
- Article Type
- Article
- Citation
- THIN SOLID FILMS, vol. 516, no. 18, page. 6020 - 6027, 2008-07-31
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- There are no files associated with this item.
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