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Weak decay processes in pre-supernova core evolution within the gross theory
(IOP Publishing, 2014-02)
The beta decay and electron capture rates are of fundamental importance in the evolution of massive stars in a pre-supernova core. The beta decay process gives its contribution by emitting electrons in the plasma of the ...
Electron Interactions with Disulfide Bridges
(Recife, 2012-11-11)
Because of its electronic properties, sulfur plays a major role in a variety of metabolic processes and, more in general, in the chemistry of life. In particular, S-S bridges between cysteines are present in the amino acid ...
Decay of photo-excited conductivity of Er-doped SnO2 thin films
(Springer, 2007-04-01)
Er-doped SnO2 thin films, obtained by sol-gel-dip-coating technique, were submitted to excitation with the 4th harmonic of a Nd:YAG laser (266 nm), at low temperature, and a conductivity decay is observed when the illumination ...
Decay of photo-excited conductivity of Er-doped SnO2 thin films
(Springer, 2007-04-01)
Er-doped SnO2 thin films, obtained by sol-gel-dip-coating technique, were submitted to excitation with the 4th harmonic of a Nd:YAG laser (266 nm), at low temperature, and a conductivity decay is observed when the illumination ...
Optical emission and electron capture of rare-earth trivalent ions located at distinct sites in SnO(2) thin films
(Elsevier B.V., 2009-01-01)
We present photoluminescence and decay of photo excited conductivity data for sol-gel SnO(2) thin films doped with rare earth ions Eu(3+) and Er(3+), a material with nanoscopic crystallites. Photoluminescence spectra are ...
Optical emission and electron capture of rare-earth trivalent ions located at distinct sites in SnO(2) thin films
(Elsevier B.V., 2009-01-01)
We present photoluminescence and decay of photo excited conductivity data for sol-gel SnO(2) thin films doped with rare earth ions Eu(3+) and Er(3+), a material with nanoscopic crystallites. Photoluminescence spectra are ...
THE ENERGY BARRIER FOR ELECTRON TRAPPING IN ALXGA1-XAS
(Akademie Verlag Gmbh, 1993-09-16)
Transient decay of persistent photoconductivity measurements are carried out in samples of different compositions. The capture barrier for electron trapping by DX centers is obtained using a method which employs the ...