Abstract

This paper discusses the luminescence properties of Ce3+ ions in strontium hexaborate SrB6O10 when they are excited in the 3.5-18-eV region. At least two types of luminescent Ce3+ centers are observed in solid solutions of composition Sr1-xCexB6O10 (x<0.01). One of them is formed by direct replacement of strontium ions without local charge compensation, and the second center is an associate of a Ce3+ cerium ion and a strontium vacancy. It is shown that the dominant charge-compensation mechanism on the cation sublattice includes the formation of one strontium vacancy for each two Ce3+ ions introduced into the lattice.

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