Highly intense violet-blue light emission at room temperature in structurally disordered SrZrO3 powders
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Undergraduate course
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American Institute of Physics (AIP)
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Article
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Abstract
Violet-blue photoluminescence was produced at room temperature in a structurally disordered SrZrO3 perovskite structure with a 350.7 nm excitation line. The intensity of this emission was higher than that of any other perovskites previously studied. The authors discuss the role of structural order-disorder that favors the self-trapping of electrons and charge transference, as well as a model to elucidate the mechanism that triggers photoluminescence. In this model the wide band model, the most important events occur before excitation. (c) 2007 American Institute of Physics.
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English
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Applied Physics Letters. Melville: Amer Inst Physics, v. 90, n. 9, 3 p., 2007.
