Abstract
THE tungstates of calcium, strontium, magnesium and zinc, and the molybdates of calcium are known to show luminescence upon excitation by cathode rays or short-wave ultra-violet radiation. It is commonly assumed that this luminescence is characteristic of the tungstate and molybdate groups. If this is true, there must be a reason why other tungstates and molybdates are found to be non-luminescent. Studying a number of different tungstates and molybdates in this Laboratory, we have found this reason to be the temperature-quenching.
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References
Hüniger, cited by Birus, K., Ergeb. Exakt. Naturw., 20, 221 (1942). Hill, C. G. A., Trans. Farad. Soc., 42, 666 (1946).
Kröger, F. A., "Some Aspects of the Luminescence of Solids" (Elsevier Publishing Co., Amsterdam and New York, 1947), in the press.
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KRÖGER, F. Fluorescence of Tungstates and Molybdates. Nature 159, 674–675 (1947). https://doi.org/10.1038/159674b0
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DOI: https://doi.org/10.1038/159674b0
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