The Luminescence of Octahedrally Coordinated Divalent Europium in Cs2M2+P2O7(M = Ca, Sr)

Autor:	U. Happek, Murat Aycibin, Alok Srivastava, Stephen Chaney
Rok vydání:	2009
Předmět:	chemistry.chemical_classification chemistry Inorganic chemistry chemistry.chemical_element Europium Luminescence Divalent
Zdroj:	ECS Transactions. 16:57-60
ISSN:	1938-6737 1938-5862
DOI:	10.1149/1.3112638
Popis:	In this paper the excitation and emission spectra of Eu2+ in Cs2M2+P2O7, where M2+ = Ca2+ and Sr2+, are presented. The remarkable features of the Eu2+ luminescence in these double phosphate materials include a very large Stokes shift of emission (~1 eV), a high luminescence quenching temperature and a very low energy of the emitted photons, which is unusual for the luminescence of the Eu2+ ion in phosphate based materials. It is shown that the optical spectra can be attributed to an extreme case of the standard Eu2+ 4f65d1→ 4f7[8S7/2] transition.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::acd5b19469545edb346d4bebee88f1a3 https://doi.org/10.1149/1.3112638 Zobrazit plný text záznamu