Información del autor
Autor Piqueras de Noriega, Javier |
Documentos disponibles escritos por este autor (322)
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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[...]![]()
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Hidalgo Alcalde, Pedro ; Méndez Martín, Bianchi ; Piqueras de Noriega, Javier ; Dutta, P: S. | Materials Research Society | 2000GaSb p-n junctions formed by Zn diffusion in Te-doped n-GaSb single crystalline wafers have been characterized by cathodoluminescence (CL) microscopy and by scanning tunneling spectroscopy. CL plane-view observations of the Zn diffused side enab[...]![]()
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Zaldivar, M.H. ; Fernández Sánchez, Paloma ; Piqueras de Noriega, Javier | American Institute of Physics | 2001-07-15Remote electron beam induced current (REBIC) measurements have been carried out to investigate electrically active regions in Si doped GaN films. REBIC bright-dark contrast has been observed in the border of growth, round or pyramidal, hillocks,[...]![]()
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Cebriano Ramírez, Teresa ; Méndez Martín, Bianchi ; Piqueras de Noriega, Javier | Springer | 2012-10Luminescence of micro-and nanotriangles of cubic antimony oxide, Sb_2O_3 has been investigated by cathodoluminescence (CL) in scanning electron microscope and by photoluminescence (PL) in a laser confocal microscope. The triangles were grown by [...]![]()
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Scanning electron acoustic microscopy (SEAM) has been used in the observation of domain walls in iron- and cobalt-based amorphous alloys ribbons. Controlled magnetic annealing experiments enabled the direct identification of domain walls in SEAM[...]![]()
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Magdas, D.A. ; Malestre, D. ; Cremades Rodríguez, Ana Isabel ; Gregorati, Luca ; Piqueras de Noriega, Javier | Academic Press Ltd- Elsevier Science Ltd | 2009-04In this work sintered thick microcrystalline films as well as micro and nanostructures of In(2)O(3) have been studied. The results obtained by XPS microscopy show that the boundary regions of the microcrystalline films present a higher amount of[...]![]()
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Herrera, M. ; Cremades Rodríguez, Ana Isabel ; Piqueras de Noriega, Javier ; Stutzmann, M. ; Ambacher, O. | American Institute of Physics | 2004-11Cathodoluminescence (CL) in the scanning electron microscope and atomic force microscopy (AFM) have been used to study the formation of pinholes in tensile and compressively strained AlInGaN films grown on Al2O3 substrates by plasma-induced mole[...]![]()
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Pal, U. ; Piqueras de Noriega, Javier ; Fernández Sánchez, Paloma ; Serrano, M. D. ; Dieguez, E. | American Institute of Physics | 1994-09-15Cathodoluminescence in the scanning electron microscope has been used to investigate the relationship of point defects in CdTe and CdTe:V with luminescence bands at 1.40 and 1.13 eV. V has been found to inhibit the 1.40 eV luminescence. Annealin[...]![]()
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Garcia, J. A. ; Remon, A. ; Domínguez-Adame Acosta, Francisco ; Piqueras de Noriega, Javier | Elsevier Science SA | 1991-07The spectral emission of GaP:S in the range 1.5- 2.1eV (800-600nm) has been studied by cathodoluminescence in the scanning electron microscope and by photoluminescence. In as-grown samples the spectra show two bands centered at about 700-730 and[...]![]()
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Piqueras de Noriega, Javier ; Fernández Sánchez, Paloma ; Vicent López, José Luis | Amer Inst Physics | 1990-12-17Changes in the visible and infrared cathodoluminescence(CL)spectra of YBa2Cu3O7?x are detected during irradiation in the scanning electron microscope. Results indicate the influence of oxygen content on the appearance of a CL band at 450–600 nm.[...]![]()
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Cremades Rodríguez, Ana Isabel ; Piqueras de Noriega, Javier ; Albrecht, M. ; Stutzmann, M. ; Strunk, H.P. | Elsevier Science SA | 2002-03-22InGaN quantum well (QW) structures with different thicknesses have been characterised by means of cathodoluminescence (CL) in the scanning electron microscope and transmission electron microscopy (TEM), in order to study the structural defects t[...]![]()
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Urbieta Quiroga, Ana Irene ; Fernández Sánchez, Paloma ; Piqueras de Noriega, Javier | American Institute of Physics | 2004-08-20The effect of mechanical milling on the structure and luminescent properties of CdSe powder has been investigated by means of cathodoluminescence (CL) in the scanning electron microscope, transmission electron microscopy (TEM) and x-ray diffract[...]![]()
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Plaza, J. L. ; Hidalgo Alcalde, Pedro ; Méndez Martín, Bianchi ; Piqueras de Noriega, Javier ; Dieguez, E. | Elsevier Science SA | 2002-04-30The defect structure of Te-doped GaSb samples co-doped with Er_2O_3 and grown by the vertical Bridgman technique has been analysed. This study was carried out for different Er and Te concentrations. The defect structure of the samples has been a[...]![]()
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Maestre Varea, David ; Ramírez Castellanos, Julio ; Hidalgo Alcalde, Pedro ; Cremades Rodríguez, Ana Isabel ; Gónzalez Calbet, J.M. ; Piqueras de Noriega, Javier | Wiley-V C H Verlag Gmbh | 2007-04The defect structure of sintered SnO_2 was investigated by high-resolution transmission electron microscopy (HRTEM), cathodoluminescence (CL), and electrical measurements. HRTEM shows the presence of the SnO phase in the sintered samples as well[...]