Effect of Sb content on the physical properties of Ge-Se-Te chalcogenide glasses

Vashist, Priyanka; Anjali, .; Patial, Balbir Singh; Thakur, Nagesh

doi:10.1063/1.5032932

Cited by 4 publications

(2 citation statements)

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“…It is observed that the values of L decreases as Sn-concentration increases which is attributed to the enhanced interaction of Sn ions with the bridging Se atoms. The high values of L (L > 1) show that the investigated systems are good glass former [19]. The deviation of stoichiometry (R) is formulated as the ratio of probabilities of covalent bonding of chalcogen atoms to probabilities of covalent bonding of non-chalcogen atoms.…”

Section: Lone Pair Of Electrons and Deviation Of Stoichiometrymentioning

confidence: 99%

“…The deviation of stoichiometry (R) is formulated as the ratio of probabilities of covalent bonding of chalcogen atoms to probabilities of covalent bonding of non-chalcogen atoms. For (Ge 20 Se 80 ) 90-x Sb 10 Sn x (x = 2, 4, 6 and 10 at %) glassy systems, R is defined as [19]: R = βZ Se αZ Ge + γZ Sb + δZ Sn (7) whereαβγand δare the atomic weight percentages of Ge, Se, Sb and Sn respectively; Z Ge = 4, Z Se = 2, Z Sb = 3 and Z Sn = 4 represent the coordination numbers of Ge, Se, Sb and Sn respectively. The occurrence of only heteropolar bonds is characterized by the critical value, R = 1.…”

Section: Lone Pair Of Electrons and Deviation Of Stoichiometrymentioning

confidence: 99%

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EFFECT OF Sn INCORPORATION ON STRUCTURAL, PHYSICAL AND ELECTRICAL PROPERTIES OF Ge-Se-Sb-Sn THIN FILMS

Kang¹,

Kotnala²,

Tripathi³

2020

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The present work reports the analysis of physical, structural and electrical properties alongwiththeir compositional dependence for (Ge20Se80)90-xSb10Snx (x = 2, 4, 6, 10 at %) chalcogenide glassy system. XRDspectra show the amorphous nature of the prepared samples with the possibility of short-range ordering in the samples. Chemically ordered network model, consistent with (8− N) rule, has been utilizedin estimating various physical parameters which reveals that Ge-Se-Sb-Sn glassy systems are thermally stable glasses. The current transport mechanisms have been investigated as a function of temperature in the temperature range 293 K− 363 K revealing thatthe dc-conduction occurs through an activated process with single activation energy. Meyer-Neldel rule is found to be obeyed. The present study suggests Ge-Se-Sb-Sn glassy system to be an optimal material for utilization in optical devices.

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Section: Lone Pair Of Electrons and Deviation Of Stoichiometrymentioning

confidence: 99%

Section: Lone Pair Of Electrons and Deviation Of Stoichiometrymentioning

confidence: 99%