2026-06-28T20:40:17Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/592062024-10-03T12:56:58Zcom_20.500.14352_14col_20.500.14352_15

Luminescence in thermally annealed and electron irradiated Bi_2Sr_2CaCu_2O_x ceramics Gómez, P. Piqueras De Noriega, Francisco Javier Remon, A. García, J. A. Jimenez, J. Torres Ruiz, Alejandro The effect of vacuum thermal annealing and electron irradiation on the luminescence of Bi_2Sr_2CaCu-2O_x 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. 2023-06-20T19:04:24Z 2023-06-20T19:04:24Z 1996-10-16 journal article 1862-6300 10.1002/pssa.2211570231 https://hdl.handle.net/20.500.14352/59206 http://dx.doi.org/10.1002/pssa.2211570231 http://onlinelibrary.wiley.com/doi/10.1002/pssa.2211570231/abstract;jsessionid=CD65BD1B6FE6CE7F0F7BCA501A96F17F.f01t04 metadata only access Wiley-V C H Verlag GMBH