Numéro
J. Phys. Colloques
Volume 44, Numéro C6, Octobre 1983
Spectroscopie Photoacoustique et Photothermique / Photoacoustic and Photothermal Spectroscopy
Page(s) C6-325 - C6-329
DOI https://doi.org/10.1051/jphyscol:1983653
Spectroscopie Photoacoustique et Photothermique / Photoacoustic and Photothermal Spectroscopy

J. Phys. Colloques 44 (1983) C6-325-C6-329

DOI: 10.1051/jphyscol:1983653

MIRAGE EFFECT STUDIES OF ELECTROCHEMICAL PROCESSES

B.S.H. Royce1, D. Voss1 et A. Bocarsly2

1  Applied Physics and Materials Laboratory Princeton University, Princeton, New Jersey 08544, U.S.A.
2  Department of Chemistry Princeton University, Princeton, New Jersey 08544, U.S.A.


Résumé
On a étudié la décomposition chimique d'électrodes semi-conductrices et les effets de l'échange de la charge sur les couples d'oxydoréduction en solution au moyen de l'effet de mirage. L'usage spectroscopique de cette méthode permet la détection des films de surface et on a mesuré les coefficients de diffusion des ions d'oxydoréduction provenant de l'échange de la charge au niveau des électrodes de métal en se servant des changements de l'indice de réfraction associés à ces réactions.


Abstract
The photochemical decomposition of semiconducting electrodes and the effects of charge exchange to redox species in solution have been studied by means of the Mirage Effect. Spectroscopic use of this method permits the detection of surface films and diffusion coefficients of redox ions generated by charge exchange at metal electrodes have been measured using the refractive index changes associated with these reactions.


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