Abstract
PREVIOUSLY1 we reported experiments suggesting that vibrationally excited molecules are able to induce electron transitions in solids. In brief, the experimental method is as follows: a “molecular beam” is made to strike a hot filament and then to impinge on a detector. The detector is a thin film of zinc oxide obtained by oxidation in air of a layer of zinc prepared by vacuum evaporation2. The electronic transitions in the zinc oxide are afterwards observed by measuring the thermostimulated electron emission of the sample in a proportional counter3. This technique is somewhat similar to that used by Dorrestein4 for the detection of excited atoms and radicals, but seems to be more sensitive because it can be used to integrate small excitations during long periods.
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References
Dauchot, J. P., Verhaegen, J. P., and van Cakenberghe, J., Nature, 223, 825 (1969).
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Dauchot, J. P., and van Cakenberghe, J., J. Phys. App., Avril (1970).
Dorrestein, R., Physica, 9, 447 (1942).
Olmsted, J., Newton, A. S., and Street, K., J. Chem. Phys., 42, 2, 321 (1965).
Schulz, G. J., Phys. Rev., 135, A, 988 (1964).
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FORIER, R., DAUCHOT, J. & VAN CAKENBERGHE, J. Energy Transfer from Excited Gaseous Molecules to Solids. Nature 229, 488–489 (1971). https://doi.org/10.1038/229488a0
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DOI: https://doi.org/10.1038/229488a0
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