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Journal of Applied Physics / Volume 109 / Issue 12 / ARTICLES / Interdisciplinary and General Physics

J. Appl. Phys. 109, 124902 (2011); http://dx.doi.org/10.1063/1.3596570 (4 pages)

Investigation of Ag-poly(3,4-ethylenedioxythiophene):polystyrene sulfonate nanocomposite films prepared by a one-step aqueous method

Seok-Joo Wang, Yong-June Choi, and Hyung-Ho Park

Department of Materials Science and Engineering, Yonsei University, 134 Sinchon-dong, Seodaemun-gu, Seoul, 120-749, Korea

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(Received 28 March 2011; accepted 30 April 2011; published online 17 June 2011)

Poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) hybrid films containing Ag nanoparticles were synthesized by a one-step aqueous method. The embedded Ag nanoparticles were produced using PEDOT as a reducing agent and PSS as a stabilizer. We have also demonstrated nanoparticle growth with increasing reaction time and silver nitrate content. Finally, as a nanocomposite-containing nanoparticle without surface-capping molecules and embedded in a conducting polymer matrix, the Ag NPs-PEDOT:PSS nanocomposite is interesting because it represents a type of material in which a metallic nano-island is embedded in the semiconducting matrix with a pure interface. One-step synthesized silver nanoparticles were found to induce a lowering of the work function and an increase of the highest occupied molecular orbital level in pristine PEDOT:PSS films by electron exchange with PEDOT, and also induced an inhibition of the electrostatic bond between PEDOT and PSS.

© 2011 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. EXPERIMENTAL PROCEDURE
  3. RESULTS AND DISCUSSION
  4. CONCLUSIONS

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KEYWORDS and PACS

Keywords

charge exchange, conducting polymers, nanocomposites, nanofabrication, nanoparticles, organic semiconductors, organic-inorganic hybrid materials, particle reinforced composites, thin films, work function

PACS

  • 68.55.aj

    Insulators

  • 73.30.+y

    Surface double layers, Schottky barriers, and work functions

  • 81.10.Dn

    Growth from solutions

  • 81.16.-c

    Methods of micro- and nanofabrication and processing

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3596570

PUBLICATION DATA

ISSN

0021-8979 (print)  
1089-7550 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

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Figures (5)

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