<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>
The absence of deep traps for electrons in the spectrum of As 40 Se 30 S 30 localized states films obtained by ion sputtering was determined. Bipolar drift of charge carriers was found in amorphous As 40 Se 30 S 30 films of chalcogenide glassy semiconductors, obtained by ion-plasma sputtering of high-frequency, unlike the films of these materials obtained by thermal evaporation.
<p>Bipolar photoconductivity and bipolar drift of charge carriers have been established in amorphous chalcogenide glassy semiconductors As<sub>40</sub>Se<sub>30</sub>S<sub>30</sub> films, obtained by ion-plasma rf sputtering, in contrast to the films of these materials obtained by thermal evaporation. Observed results were due to the lack of deep traps for electrons in the spectrum of localized film states obtained by ion sputtering.</p>
Abstract. Structure of amorphous chalcogenide semiconductor glassy As-S-Se films, obtained by high-frequency (HF) ion-plasma sputtering has been investigated. It was shown that the length of the atomic structure medium order and local structure were different from the films obtained by thermal vacuum evaporation. Temperature dependence of dark conductivity, as well as the dependence of the spectral transmittance has been studied. Conductivity value was determined at room temperature. Energy activation conductivity and films optical band gap have been calculated. Temperature and field dependence of the drift mobility of charge carriers in the HF As-S-Se films have been shown. Bipolarity of charge carriers drift mobility has been confirmed. Absence of deep traps for electrons in the As 40 Se 30 S 30 spectrum of localized states for films obtained by HF plasma ion sputtering was determined. Bipolar drift of charge carriers was found in amorphous As 40 Se 30 S 30 films obtained by ion-plasma sputtering of high-frequency, unlike the films of these materials obtained by thermal evaporation.
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