Position occupied by the Activator in Impurity-activated Phosphors

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ALTHOUGH it is often assumed that the activator in impurity-activated phosphors is in solid solution in the matrix of the material, direct evidence of this has hitherto been lacking. Recently, G. R. Fonda1, in a general paper on fluorescence, mentions briefly that he has found an expansion of the lattice due to manganese in the case of zinc orthosilicate, but gives no experimental details.

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  1. 1

    Trans. Inst. Elec. Eng., 57, 677 (1938).

  2. 2

    Proc. Phys. Soc., 44, 563 (1932).

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JENKINS, H., McKEAG, A. & ROOKSBY, H. Position occupied by the Activator in Impurity-activated Phosphors. Nature 143, 978 (1939) doi:10.1038/143978a0

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