RT Journal Article
T1 Cathodoluminescence of defects in sintered tin oxide
A1 Maestre Varea, David
A1 Cremades Rodríguez, Ana Isabel
A1 Piqueras De Noriega, Francisco Javier
AB Cathodoluminescence (CL) in the scanning electron microscope (SEM) has been used to investigate the luminescence mechanisms in tin oxide. Sintered material prepared from high purity powder has been found to show a strong dependence of the CL emission on the thermal treatments applied during sample preparation. SEM images show the presence of nano and microcrystalline grains. The correlation of the grain size and morphology with the optical emission is analyzed by CL microscopy and spectroscopy. The main emission bands appear centered at about 2.58, 2.25, and 1.94 eV depending on the sintering treatment. CL images reveal that the 2.25 and the 2.58 eV bands are associated at specific crystal faces. The evolution of the luminescence bands with mechanical milling shows a complex evolution of the 1.94 and 2.58 eV emissions which is explained by formation and recovery of defects during milling.
PB American Institute of Physics
SN 0021-8979
YR 2004
FD 2004-03
LK https://hdl.handle.net/20.500.14352/50853
UL https://hdl.handle.net/20.500.14352/50853
LA eng
NO © 2004 American Institute of Physics.This work has been supported by MCYT (Project No. MAT 2000-2119). D. M. acknowledges a grant from MCYT
NO MCYT (Spain)
DS Docta Complutense
RD 18 abr 2025