Mechanical and electrical parameters of a-Ge-Se-Sn glasses

The present work reports the effect of Sn addition on the electrical and mechanical properties of the GeSe2 glass. The measured ultrasonic velocities are used to estimate the elastic moduli and Debye temperature (TD) of the (GeSe2)1−xSnx glasses. The temperature dependence of the electrical paramete...

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Bibliographic Details
Published in:Physica. B, Condensed matter Condensed matter, 2020-04, Vol.583, p.412059, Article 412059
Main Authors: Saddeek, Yasser B., Aly, K.A., Alharbi, T., Dahshan, A., Issa, Shams A.M., Ahmad, Mahmoud, Soraya, M.M.
Format: Article
Language:English
Subjects:
Bulk modulus
Chalcogenide glasses
Chemical bonds
Conductivity
Electrical
Electrical conduction
Electrical resistivity
Germanium
Glass transition temperature
Mechanical
Mechanical properties
Modulus of elasticity
Parameters
Specific heat
Temperature
Temperature dependence
Thermoelectric properties
Tin
Yttrium
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Summary:The present work reports the effect of Sn addition on the electrical and mechanical properties of the GeSe2 glass. The measured ultrasonic velocities are used to estimate the elastic moduli and Debye temperature (TD) of the (GeSe2)1−xSnx glasses. The temperature dependence of the electrical parameters and thermo-electrical power of the studied glasses was determined over the temperature range of 300–450 K. The Young's modulus (Y) and bulk modulus (K) as well as the activation energy for the dark electrical conduction (ΔEdc) were correlated with the glass transition temperature (Tg). The observed changes were explained in terms of the distribution of the formed chemical bonds in each glass sample. ΔEdc values decrease while Y and K increase with the increase of Sn content, i.e. the addition of Sn content to the GeSe2 glass enhances both the electrical conductivity and mechanical moduli of Ge-Se-Sn glassy films. •Different compositions of (GeSe2)1−xSnx glasses in the form of bulk and films were prepared.•The mechanical parameters (L, S, K, Y and H) for (GeSe2)1−xSnx glasses have been estimated.•The activation energies for electrical ΔEdc and thermoelectrical ΔEthermo conduction were estimated.•K, S and ΔEdc are correlated with the glass transition temperature (Tg).•(Ge1Se2)100−xSnx glasses behave as P-type semiconductor.
ISSN:0921-4526
1873-2135
DOI:10.1016/j.physb.2020.412059