Fractal-Like Exciton Kinetics in Porous Glasses, Membranes and Powders

  • J. Prasad
  • S. Parus
  • R. Kopelman
Chapter
Part of the Institute for Amorphous Studies Series book series (EPPS)

Abstract

We have measured the exciton (triplet) recombination (fusion, anni­hilation) characteristics of naphthalene-doped microporous materials. This technique yields the dynamic (spectral, fracton) dimension of the embedded naphthalene structure or the effective random walk dimension of the porous network. Temperature studies separate the energetic and geometric features of the pore space. The geometric dynamic (spectral) dimensions are mostly between 1 and 2, i.e. fractal-like, and are consistent with previous results on the static (fractal or Euclidean) dimensions of the porous vycor glass samples.

Keywords

Porous Glass Percolation Cluster Continuous Time Random Walk Nominal Pore Size Cellulose Filter Paper 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Plenum Press, New York 1988

Authors and Affiliations

  • J. Prasad
    • 1
  • S. Parus
    • 1
  • R. Kopelman
    • 1
  1. 1.Department of ChemistryThe University of MichiganAnn ArborUSA

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