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Structural transformations and optical absorption spectra
of SbxSe1-x films
Rubish V.M., Shtets P.P., Rubish V.V., Malesh V.I.
Uzhhorod National University, 54, Voloshyn St. 88000 Uzhhorod,
Ukraine
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Thermo- and photostimulated processes of crystallization and amorphization
of SbxSe1–x films (0.20 < x < 0.70) as well as their optical absorption
spectra are studied. The effect of thermal annealing on the optical absorption
spectra of the films is investigated and the temperatures Tp
of their transition to the crystalline state are determined. Tp
is shown to decrease with x. At the transition from the amorphous to the
polycrystalline state transition the whole spectral range (0.60 < l
< 2.70 mm) decreases non-selectively, which
is related to the transformation of the film structure. The transmission
spectra of the amorphized areas are similar to the spectra of freshly-evaporated
films. The threshold intensities of crystallization and amorphization of
SbxSe1–x films are determined.
Keywords: crystallization, amorphization, optical absorption spectra,
phase transition, structural transformations
PACS: 73.61.Jc; 78.20.-e; 78.40.-q
doi 10.3116/16091833/3/2/130/2002 |
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