Luminescent properties and energy transfer in ZrO2:Sm3+ nanocrystals

Autor:	Pedro Salas, R.A. Rodríguez, Marco Antonio Meneses, E De la Rosa-Cruz, G. A. Kumar, Luis A. Diaz-Torres, J. M. Hernández, J. F. Mosiño, Oracio Barbosa-García
Rok vydání:	2003
Předmět:	Samarium Tetragonal crystal system Photoluminescence Materials science chemistry Doping Analytical chemistry General Physics and Astronomy chemistry.chemical_element Crystal structure Stimulated emission Luminescence Ion
Zdroj:	Journal of Applied Physics. 94:3509-3515
ISSN:	1089-7550 0021-8979
Popis:	The photoluminescence and crystalline structure characterization of undoped and several samarium doped ZrO2 samples are reported. Strong fluorescence emission produced by the transitions 4G5/2→6H5/2,7/2,9/2 of Sm3+ was obtained by the excitation of the host at 320 nm. The energy transfer process from the host to the samarium ion was confirmed by the analysis of the ZrO2 fluorescence decay curve. It is shown that the content of the active ions stabilizes the tetragonal structure of ZrO2 at 1000 °C, being 73% for 2 mol % Sm2O3 doped and 3% for undoped samples. The dependence between the fluorescence emission and the crystalline structure is discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::8ca47315f8a882f5a9811cdcbacc0575 https://doi.org/10.1063/1.1599960 Zobrazit plný text záznamu