Photoluminescence of Eu-doped ZnO structures

Veaceslav V. Ursaki; Emil Rusu; Victor Zalamai; Lilian Sirbu; Eduard Monaico; Ion M. Tiginyanu

doi:10.1117/12.612229

21 February 2005 Photoluminescence of Eu-doped ZnO structures

Veaceslav V. Ursaki, Emil Rusu, Victor Zalamai, Lilian Sirbu, Eduard Monaico, Ion M. Tiginyanu

Proceedings Volume 5822, Information Technologies 2004; (2005) https://doi.org/10.1117/12.612229
Event: Information Technologies 2004, 2004, Chisinau, Moldova

Abstract

ZnO-based red phosphors were prepared by different methods. One phosphor was grown from a Na₂B₄O₇ melt, and another one was prepared from a ZnO:Eu₂O₃ powder via electron beam treatment. The e-beam processing is found to result in the formation of a high quality layer on the surface of ZnO:Eu₂O₃ powder. The analysis of the emission related to the Eu³⁺ 4f-4f intrashell transitions suggests that the phosphor grown from the Na₂B₄O₇ melt represents a nanocomposite consisting of ZnO and Na₂B₄O₇ nanoparticles, a part of Eu³⁺ ions being incorporated into ZnO and another part into Na₂B₄O₇ constituent, while in the phosphor prepared from ZnO:Eu₂O₃ powder Eu³⁺ ions are selectively incorporated into the Zn sublattice of the ZnO host.

Citation Download Citation

Veaceslav V. Ursaki, Emil Rusu, Victor Zalamai, Lilian Sirbu, Eduard Monaico, and Ion M. Tiginyanu "Photoluminescence of Eu-doped ZnO structures", Proc. SPIE 5822, Information Technologies 2004, (21 February 2005); https://doi.org/10.1117/12.612229

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