Semiconductor Physics, Quantum Electronics & Optoelectronics. 2009. V. 12, N 3. P. 251-254.
Photo-thermoinduced changes of transmission spectra
of As40-xSbxS60 amorphous layers
1Uzhgorod Scientific-Technological Center of the Institute for Information Recording, NAS of Ukraine,
4, Zamkovi Skhody str., 88000 Uzhgorod, Ukraine, e-mail: center_uzh@email.uz.ua Abstract. The results of investigation of the As 40-x Sb x S 60 (x = 0-10) thin films
transmission spectra depending on exposure and heat treatment conditions are given. It
was established that illumination and annealing of films leads to the absorption edge shift
into the longwave spectral region. The values of pseudogap width E g are determined.
Optical characteristic changes of films are caused by photo-thermostructural
transformations taking place in them under irradiation and annealing.
Keywords: amorphous film, arsenic chalcogenides, transmission spectra, photo-
thermostructural transformations, information optical recording.
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