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Title: Conductivitatea electrică de tip Mott în straturile subţiri policristaline de ZnSxSe1-x [Articol]
Authors: Popa, Mihail
Keywords: conductivitate electrică
materiale semiconductoare
electrical conductivity
Issue Date: 2016
Publisher: USARB
Citation: Popa, Mihail. Conductivitatea electrică de tip Mott în straturile subţiri policristaline de ZnSxSe1-x / Mihail Popa // Conferința națională cu participare internațională „Știința în Nordul Republicii Moldova: realizări, probleme, perspective” : consacrată aniversărilor de 70 de ani de la constituirea Instituțiilor de Cercetare Științifică din Moldova, 55 de ani de la fondarea Academiei de Științe a Moldovei, 10 ani de la fondarea Filialei Bălți a Academiei de Științe a Moldovei (Ed. a 2-a), 29-30 sept. 2016, Bălț. – Bălți: S. n., 2016. – P. 14-20. – ISBN 978-9975-89-029-8.
Abstract: The temperature dependence of the electrical conductivity of ZnSxSe1-x thin layers was studied during a heat treatment consisting of a series of successive heating and cooling in the temperature range 300 - 500K. Measurements have shown that the thermal activation energy of the low temperatures (ΔE1 = 0.13 – 0.43 eV) is much smaller than the thermal activation energy in temperature (ΔE2 = 0.43 – 1.89 eV). In both fields of measurements the thermal activation energy increases with increasing of sulfur content of the thin layers. It has been found that at low temperatures in respective layers the dominant mechanism of electrical conduction is Mott type conduction.
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