RT Journal Article
T1 Visible cathodoluminescence from nanocrystalline GaSb obtained by mechanical milling
A1 Borini, S.
A1 Méndez Martín, María Bianchi
A1 Piqueras De Noriega, Francisco Javier
AB The luminescence of mechanically milled GaSb has been investigated by means of cathodoluminescence (CL) in the scanning electron microscope. Transmission electron microscopy reveals that the GaSb powders obtained after the milling process contain nanocrystals with sizes of few nanometers. CL spectra of the GaSb powders show a bright blue-green luminescence visible to the naked eye, even at room temperature. Furthermore, a shift from blue to green has been observed depending on the milling time. In order to clarify the origin of this visible luminescence, we have performed a CL study on gallium oxide (Ga2O3) and antimony oxide (Sb2O3) powders, which exhibit several emission bands in the visible range. Comparison of these results with CL spectra from GaSb powders shows that oxidation during the milling process of GaSb plays an important role in the luminescence features observed.
PB American Institute of Physics
SN 0021-8979
YR 2003
FD 2003-12-15
LK https://hdl.handle.net/20.500.14352/50966
UL https://hdl.handle.net/20.500.14352/50966
LA eng
NO © 2003 American Institute of Physics.This work is carried out in the framework of a European Marie Curie project (HPMT-CT-2001-00215). Support of MCYT (MAT2000-2119) is acknowledged.
NO European Marie Curie project
NO MCYT
DS Docta Complutense
RD 13 jul 2025