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|Type:||Artigo de periódico|
|Title:||Band-gap Shift In Cds: Phase Transition From Cubic To Hexagonal On Thermal Annealing|
de Melo O.
|Abstract:||The band-gap energies of CdS grown by chemical-bath deposition are obtained by optical transmission and photoacoustic spectroscopy. These values and photoluminescence spectra are correlated over a range of thermal annealing temperature, in which the evolution of sample structure is characterized by X-ray diffraction patterns. With increasing annealing temperature, the band gap reaches a minimum value. It is suggested that at this temperature a transition from a cubic to a hexagonal lattice occurs. © 1995.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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