Journal of Materials Research

Rapid Communications

Teflon AF/Ag nanocomposites with tailored optical properties

H. Eilersa1 c1, A. Biswasa1b), T.D. Poundsa2, M. Grant Nortona2 and M. Elbahria3

a1 Institute for Shock Physics, Washington State University, Spokane, Washington 99210

a2 School of Mechanical and Materials Engineering, Washington State University, Pullman, Washington 99164

a3 Chair for Multicomponent Materials, Faculty of Engineering, Christian Albrechts University, D-24143, Kiel, Germany

Abstract

Teflon AF/Ag nanocomposites with various metal concentrations were fabricated by an evaporation process. Transmission electron microscopy examination showed that for low metal concentrations, the silver formed isolated individual nanoparticles. At higher metal concentrations, percolating metallic networks within the polymer matrix were formed. Optical absorption measurements showed a transition from individual plasmon absorption peaks for individual Ag nanoparticles to broadband optical absorption for the metallic networks. The absorption profile closely matches the solar radiation spectrum for an intermediate metal concentration of 45%. Thus, these novel polymer-metal nanocomposites have significant potential for photovoltaic applications.

(Received February 13 2006)

(Accepted May 05 2006)

(Online publication March 03 2011)

Key Words:

  • Absorption;
  • Nanoscale;
  • Optical properties

Correspondence:

c1 Address all correspondence to these authors. e-mail: eilers@wsu.edu

Footnotes

b) Present address: Office of Electronic Miniaturization, University of Alaska-Fairbanks, Fairbanks, AK 99709 e-mail: ffab2@uaf.edu

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