Spectroscopy properties and energy level location of Gd(2)O(2)S:Pr(3+),Ce(3+)


Autoria(s): Cebim, Marco Aurelio; Da Silva, Alison Abreu; Davolos, Marian Rosaly; Kasap, S; DeCorby, R; Ruda, H; Hegmann, F; Kashyap, R
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

20/05/2014

20/05/2014

01/01/2009

Resumo

In this work we propose the study of the spectroscopy properties and the energy level location of Ce(3+) and Pr(3+) in Gd(2)O(2)S, along with the effects of Ce(4+) (Ce(2)O(2)S(2)) incorporation in Gd(2)O(2)S and Gd(2)O(2)S: Pr(3+) in order to understand the formation and position of the associated defects energy levels in relation to the band structure of Gd(2)O(2)S and Pr(3+) energy levels. Ce-, Pr(3+)-doped and Pr(3+), Ce-doped Gd(2)O(2)S were prepared by the sulfidization of a basic gadolinium carbonate with S(8) using H(2)/N(2) (3.0/97.0%) and air during the firing of the precursor. Samples were analyzed by X-ray diffraction in order to guarantee the formation of the Gd(2)O(2)S single phase. Diffuse reflectance spectroscopy and luminescent measurements (emission/excitation) were used to locate Ce(3+), Pr(3+) and defects energy levels in relation to the band structure of Gd(2)O(2)S. (C) 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

Formato

S171-S174

Identificador

http://dx.doi.org/10.1002/pssc.200881284

Physica Status Solidi C: Current Topics In Solid State Physics, Vol 6, Suppl 1. Weinheim: Wiley-v C H Verlag Gmbh, v. 6, p. S171-S174, 2009.

1862-6351

http://hdl.handle.net/11449/26010

10.1002/pssc.200881284

WOS:000294493400039

Idioma(s)

eng

Publicador

Wiley-v C H Verlag Gmbh

Relação

Physica Status Solidi C: Current Topics In Solid State Physics, Vol 6, Suppl 1

Direitos

closedAccess

Tipo

info:eu-repo/semantics/conferencePaper