Spectroscopic studies of divalent ion-cation vacancy interactions in alkali halide single crystals: KX: Ge²⁺, KX: Sn²⁺, KX: Pb²⁺

D. J. Simkin Department of Chemistry, McGill University, Montreal, Canada

J. G. Kang Department of Chemistry, McGill University, Montreal, Canada

T. F. Belliveau Department of Chemistry, McGill University, Montreal, Canada

P. W. M. Jacobs Department of Chemistry, University of Western Ontario, London, Canada

A. Scacco Department of Chemistry, University of Western Ontario, London, Canada; Istituto di Fisica, Universita di Roma, Roma, Italy

M. J. Stillman Department of Chemistry, University of Western Ontario, London, Canada

V. S. Sivasankar Department of Chemistry, University of Western Ontario, London, Canada

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Abstract

Results of luminescent experiments done on KX:M²⁺ (X=C1⁻, Br⁻ or I⁻ and M²⁺ = Ge²+, Sn²⁺ or Pb²⁺) are presented. Tentative assignments for KBr:Ge²⁺ A₁ and A₂ emission bands are given. Polarization measurements show the charge compensating vacancy in KX:Sn²⁺ to be next nearest neighbor. Details of the decay kinetics of KX:Pb²⁺ are discussed.

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Spectroscopic studies of divalent ion-cation vacancy interactions in alkali halide single crystals: KX: Ge²⁺, KX: Sn²⁺, KX: Pb²⁺

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Spectroscopic studies of divalent ion-cation vacancy interactions in alkali halide single crystals: KX: Ge2+, KX: Sn2+, KX: Pb2+

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Spectroscopic studies of divalent ion-cation vacancy interactions in alkali halide single crystals: KX: Ge²⁺, KX: Sn²⁺, KX: Pb²⁺