ChemInform Abstract: Emission Properties of Nanostructured Eu3+ Doped Zinc Aluminate Spinels

Autor: Przemysław J. Dereń, J Wrzyszcz, Mirosław Zawadzki, Wieslaw Strek, Artur Bednarkiewicz
Rok vydání: 2010
Předmět:
Zdroj: ChemInform. 31
ISSN: 1522-2667
0931-7597
DOI: 10.1002/chin.200028015
Popis: The preparation of nanostructured ZnAl2O4 spinel powders doped with Eu3+ ions obtained by a hydrothermal method is described. XRD analyses demonstrated that the powders were single-phase spinel nanopowders with high crystallite dispersion. The averaged spinel particle size was determined to be 6 nm as prepared and it increased up to 8 nm for calcination at 500°C. The emission spectra of Eu3+ ions measured for the samples calcinated at 500°C demonstrated inhomogeneous shapes characteristic for disordered material which after heating at 1500°C changed shape into an ordered shape characteristic of the crystalline form.
Databáze: OpenAIRE