Synthesis of highly conductive PEDOT:PSS and correlation with hierarchical structure

Synthesis of highly conductive PEDOT:PSS and correlation with hierarchical structure The water dispersions of poly(3,4-ethylenedioxythiophene) doped with poly(4-styrenesulfonic acid) (PEDOT:PSS) as colloidal particles were synthesized by oxidative polymerization with different composition ratios of repeating units for PSS and PEDOT (α = 1.4–8.3). The role and effect of the PSS on hierarchical structure and electrical conductivity of the PEDOT:PSS were investigated systematically by means of X-ray photoelectron spectroscopy (XPS), dynamic light scattering (DLS), zeta potential, X-ray diffraction (XRD), and conductive atomic force microscopy (c-AFM). It was found that the PEDOT:PSS colloidal particles stably dispersed in water at α ≥ 2.3, while small primary particles aggregated to form large secondary particles in water at α = 1.4 because the zeta potential dropped owing to the less PSS. The PEDOT:PSS showed paracrystalline structure where highly conductive PEDOT nanocrystals uniformly distributed in the less conductive PSS matrices. The electrical conductivity was strongly dependent on the composition ratio and attained as high as 700 S/cm at α = 2.3 where a positive correlation was seen between the electrical conductivity and number of conductive particles favorable for hopping of charge carriers in between the nanocrystals. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Polymer Elsevier

Synthesis of highly conductive PEDOT:PSS and correlation with hierarchical structure

Loading next page...
 
/lp/elsevier/synthesis-of-highly-conductive-pedot-pss-and-correlation-with-Y7sqPe0g61
Publisher
Elsevier
Copyright
Copyright © 2018 Elsevier Ltd
ISSN
0032-3861
D.O.I.
10.1016/j.polymer.2018.02.034
Publisher site
See Article on Publisher Site

Abstract

The water dispersions of poly(3,4-ethylenedioxythiophene) doped with poly(4-styrenesulfonic acid) (PEDOT:PSS) as colloidal particles were synthesized by oxidative polymerization with different composition ratios of repeating units for PSS and PEDOT (α = 1.4–8.3). The role and effect of the PSS on hierarchical structure and electrical conductivity of the PEDOT:PSS were investigated systematically by means of X-ray photoelectron spectroscopy (XPS), dynamic light scattering (DLS), zeta potential, X-ray diffraction (XRD), and conductive atomic force microscopy (c-AFM). It was found that the PEDOT:PSS colloidal particles stably dispersed in water at α ≥ 2.3, while small primary particles aggregated to form large secondary particles in water at α = 1.4 because the zeta potential dropped owing to the less PSS. The PEDOT:PSS showed paracrystalline structure where highly conductive PEDOT nanocrystals uniformly distributed in the less conductive PSS matrices. The electrical conductivity was strongly dependent on the composition ratio and attained as high as 700 S/cm at α = 2.3 where a positive correlation was seen between the electrical conductivity and number of conductive particles favorable for hopping of charge carriers in between the nanocrystals.

Journal

PolymerElsevier

Published: Mar 28, 2018

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches

$49/month

Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.

$588

$360/year

billed annually
Start Free Trial

14-day Free Trial