Published October 16, 1996 | Version v1
Journal article Metadata-only

Luminescence in thermally annealed and electron irradiated Bi2Sr2CaCu2Ox ceramics

Creators

  • 1. Univ. de Castilla-La Mancha, Ciudad Real (Spain). Dept. de Fisica Aplicada
  • 2. Universidad Complutense, Madrid (Spain). Departamento de Fisica de Materiales
  • 3. Universidad del Pais Vasco, Lejona (Spain). Dept. de Fisica Aplicada 2
  • 4. ETS Ingenieros Industriales, Valladolid (Spain). Dept. de Fisica de la Materia Condensado

Description

The effect of vacuum thermal annealing and electron irradiation on the luminescence of Bi2Sr2CaCu2Ox ceramics has been investigated by cathodoluminescence (CL) in the scanning electron microscope (SEM), time-resolved photoluminescence (PL), and micro-Raman spectroscopy. It is found that a luminescence band centered at 2.4 eV (520 nm) is enhanced after either thermal annealing or electron irradiation treatments. The experimental results suggest that the appearance of this band is related to changes of the oxygen content induced by the treatments undergone by the sample. The effect appears to be stronger in electron irradiated samples, for which the structural changes were revealed to be more severe by micro-Raman spectroscopy. (orig.)

Additional details

Publishing Information

Journal Title
Physica Status Solidi. A, Applied Research
Journal Volume
157
Journal Issue
2
Journal Page Range
p. 469-482.
ISSN
0031-8965
CODEN
PSSABA

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
29007128
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ANNEALING; BISMUTH OXIDES; CALCIUM OXIDES; CATHODOLUMINESCENCE; COPPER OXIDES; ELECTRONS; HIGH-TC SUPERCONDUCTORS; PHOTOLUMINESCENCE; PHYSICAL RADIATION EFFECTS; RAMAN SPECTRA; SCANNING ELECTRON MICROSCOPY; STRONTIUM OXIDES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; BISMUTH COMPOUNDS; CALCIUM COMPOUNDS; CHALCOGENIDES; COPPER COMPOUNDS; ELECTRON MICROSCOPY; ELEMENTARY PARTICLES; EMISSION; FERMIONS; HEAT TREATMENTS; LEPTONS; LUMINESCENCE; MICROSCOPY; OXIDES; OXYGEN COMPOUNDS; PHOTON EMISSION; RADIATION EFFECTS; SPECTRA; STRONTIUM COMPOUNDS; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
27 refs.