Synthesis, structure, electronic and thermal properties of sphalerite CuZn₂InS₄

Abstract

Sphalerite quaternary chalcogenides have intrinsically low thermal conductivity and electrical properties that can be altered with stoichiometric variation. Temperature-dependent structural and thermal properties provided evidence of anharmonicity.

Electronic and Thermal Properties of the Cation Substitution-Derived Quaternary Chalcogenide CuInSnSe4

“…This value is also consistent with the value (γ = 2.0) obtained using the results of our fit to the κ data and B ≅ ℏγ 2 / Mv 2 θ D . These γ values are comparable to the values (γ ≈ 2) reported for chalcopyrite CuInQ 2 (Q = S, Se, Te) ,,,, but higher than those reported for sphalerite I–II 2 –III–VI 4 quaternary chalcogenides. ,, This suggests a similar lattice anharmonicity for CuInSnSe 4 to that of the ternary chalcogenides.…”

Thermal and Electronic Properties of Ba2MnSe3

“…The thermal properties of materials are among the most fundamental, the knowledge of which is essential for any applications of interest, including those outlined above. Moreover, an intrinsically low thermal conductivity, κ, is important for thermoelectric, thermal barrier coating and phase-change memory materials with specific structural features such as weak bonding, , coordination preferences, , lone pair electrons, − the large number of atoms per unit cell, , the superionic transition, − partial occupancy, − and strong anharmonicity, − leading to low κ values. Motivated by these considerations and our ongoing interest in multinary metal chalcogenides, we investigated the thermal and electronic properties of Ba 2 MnSe 3 .…”