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

Seok Joo Wang, Yong June Choi, Hyung Ho Park

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number124902
JournalJournal of Applied Physics
Volume109
Issue number12
DOIs
Publication statusPublished - 2011 Jun 15

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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