%0 Journal Article
%A Hidalgo Alcalde, Pedro
%A Plaza, J. L.
%A Méndez Martín, María Bianchi
%A Dieguez, E.
%A Piqueras De Noriega, Francisco Javier
%T Cathodoluminescence from Er_2O_3-doped n-type GaSb : Te crystals
%D 2002
%@ 0953-8984
%U https://hdl.handle.net/20.500.14352/58922
%X The luminescence of Te-doped GaSb crystals codoped with Er2O3 has been studied by means of cathodoluminescene (CL) using a scanning electron microscope. Doping with erbium oxide causes a substantial increase of the luminescence intensity of the crystals and spectral broadening. Deconvolution of the CL spectra reveals the existence of four components. The presence of erbium oxide induces a decrease of the 746 meV emission characteristic of Te-doped samples. CL images show a complex distribution of recombination centres which depends to a large extent on he local Te concentration.
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