RT Journal Article
T1 Cathodoluminescence characterization of rare earth doped composite materials based on porous GaP
A1 Sánchez, Borja
A1 Méndez Martín, María Bianchi
A1 Piqueras De Noriega, Francisco Javier
A1 Sirbu, Lilian
A1 Tiginyanu, Ion
A1 Ursaki, Veaceslav
AB Porous GaP layers doped with erbium or europium elements have been obtained by electrochemical etching and further impregnation processes. The thermal treatments for optical activation of rare earth (RE) ions lead to partial oxidation of porous GaP skeleton and a composite material is obtained. The presence of ErPO_4 and EuPO_4 oxide nanophases is detected by X-ray diffraction (XRD) analysis. Visible luminescence from RE ions in the composite material has been investigated by means of the cathodoluminescence (CL) technique in the scanning electron microscope. Intense red and green emission lines characteristic from Er^3 and Eu^3 ions dominate the CL spectra in the case of parallel and regular nanotubes in the samples. The role of the oxygen content and the detected phases in the luminescence results are discussed.
PB Springer Netherlands
SN 0022-2461
YR 2008
FD 2008-01
LK https://hdl.handle.net/20.500.14352/50940
UL https://hdl.handle.net/20.500.14352/50940
LA eng
NO © Springer Science+Business Media, LLC 2007.Meeting of the Brazilian-Society-for-Materials-Research (5. 2008. Florianopolis, Brasil).This work has been supported by MEC (project MAT-2003-00455).
NO MEC
DS Docta Complutense
RD 11 abr 2025