Abstract
Abstract The nature of the first excited states in several tris chelate complexes of Rh3+ is elucidated by luminescence line narrowing (LLN). The technique is very effective in glassy matrices at temperatures up to 40 K. The dependences on the matrix and on the chemical composition of the complexes are studied. A four-level pattern of emitting states, as derived from high-resolution crystal spectra, accounts for the effects observed in the LLN spectra.
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