<p>The absence of deep traps for electrons in the spectrum of As<sub>40</sub>Se<sub>30</sub>S<sub>30</sub> localized states films obtained by ion sputtering was determined. Bipolar drift of charge carriers was found in amorphous As<sub>40</sub>Se<sub>30</sub>S<sub>30</sub> films of chalcogenide glassy semiconductors, obtained by ion-plasma sputtering of high-frequency, unlike the films of these materials obtained by thermal evaporation.</p>
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