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Luminescence of SnO2: Eu; dependence on the oxidation state of the precursor |
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| Authors: | K. Kynev S. Gutzov S. K. Peneva A. A. Apostolov |
| Abstract: | Preparation conditions and phase composition of polycrystalline SnO2: Eu luminophores are investigated. The results show that the luminescence intensity of SnO2: Eu obtained from Sn(II)-containing precursors, (hydroxide or oxide), is considerably higher than that from Sn(IV) oxide hydrate. It is considered that the creation of luminescence centers in SnO2: Eu is connected to the formation of intermediate Sn(II)—Sn(IV) oxides during the oxidation. |
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