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The luminescence of unactivated alkali iodides

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Cechoslovackij fiziceskij zurnal B Aims and scope

Abstract

Two shorter wave-length emission bands have been observed in activated alkali iodides atγ — and light excitation apart from activator emission. The shortest wave-length band, observed only at low temperatures, is excited in exciton absorption bands and it may be due to exciton emission.

This emission has greater intensity in unactivated crystals grown from the solution. We have observed this emission on CsI, KI and RbI crystals.

The intermediate emission band is excited in a narrow excitation band, situated on the sharp slope of the fundamental absorption in crystals and it can apparently be ascribed to structural defects.

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Authors and Affiliations

  1. Lebedev Physical Institute, Academy of Science, Moscow, USSR

    Z. L. Morgenštern & N. N. Vasiljeva

Authors
  1. Z. L. Morgenštern
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  2. N. N. Vasiljeva
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Additional information

We wish to thank M. D. Galanin for interest in this work and L. M. šamovski for providing us with crystals.

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Morgenštern, Z.L., Vasiljeva, N.N. The luminescence of unactivated alkali iodides. Czech J Phys 13, 226–230 (1963). https://doi.org/10.1007/BF01875277

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  • DOI: https://doi.org/10.1007/BF01875277

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