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Chioncel, M. F. ; Díaz-Guerra Viejo, Carlos ; Piqueras de Noriega, Javier ; Duhanian, N. ; Duffar, T. | natl Inst Optoelectronics | 2004-03Low band-gap InGaSb crystals are of interest for the development of thermo-photo-voltaic (TPV) cells and other devices operating in the infrared spectral range. In this work, cathodoluminescence (CL) in the scanning electron microscope (SEM) has[...]texto impreso
Chioncel, M. F. ; Díaz-Guerra Viejo, Carlos ; Piqueras de Noriega, Javier ; Vincent, J. ; Bermudez, V. ; Dieguez, E. | Elsevier Science B.V. | 2004-07-15The nature and the spatial distribution of radiative defects in InxGa1-xSb grown by the vertical Bridgman method have been studied by cathodoluminescence (CL) in a scanning electron microscope. The CL results have been complemented by X-ray micr[...]texto impreso
Chioncel, M. F. ; Díaz-Guerra Viejo, Carlos ; Piqueras de Noriega, Javier | IOP publishing ltd | 2004-03Cathodoluminescence in the scanning electron microscope has been used to investigate the effect of plastic deformation, produced by indentation, in Te-doped GaSb crystals. Deformation has been found to cause a strong quenching of the luminescenc[...]texto impreso
Díaz-Guerra Viejo, Carlos ; Pérez García, Lucas ; Piqueras de Noriega, Javier ; Chioncel, M. F. | American Institute of Physics | 2009-11-15Magnetic transitions in single-crystal alpha-F_2O_3 (hematite) nanowires, grown by thermal oxidation of iron powder, have been studied in the range of 5-1023 K with a superconducting quantum interference device below room temperature and with a [...]texto impreso
Díaz-Guerra Viejo, Carlos ; Chioncel, M. F. ; Vincent, J ; Bermudez, V. ; Piqueras de Noriega, Javier ; Dieguez, E. | Wiley-V C H Verlag Gmbh | 2005The homogeneity and luminescence properties of undoped and Te-doped In_xGa_(1-x)Sb crystals grown by the Bridgman and Vertical Feeding methods have been studied by cathodoluminescence (CL) and X-ray microanalysis in a scanning electron microscop[...]
