Electronic, mechanical and piezoelectric properties of glass-like complex Na<sub>2</sub>Si<sub>1−<i>x</i></sub>Ge<sub><i>x</i></sub>O<sub>3</sub> (<i>x</i> = 0.0, 0.25, 0.50, 0.75, 1.0)
R. Zosiamliana, B. Chettri, Guilherme S. L. Fabris, Júlio R. Sambrano, Sherzod Abdullaev, G. Abdurakhmanov, P. Raics
Abstract
) semiconductors. The studied systems have shown mechanical stabilities by satisfying the Born criteria for mechanical stability. The calculated results have shown highly anisotropic behaviour and high melting temperature, which are a signature of glass materials. The piezoelectric tensor (both direct and converse) is computed. The results thus obtained predict that the systems under investigation are potential piezoelectric materials for energy harvesting.
Topics & Concepts
PiezoelectricityMaterials scienceBond lengthBand gapDensity functional theoryCondensed matter physicsAnisotropyDopingElectronic structureSemiconductorCrystallographyComputational chemistryChemistryOptoelectronicsPhysicsComposite materialOpticsCrystal structureFerroelectric and Piezoelectric MaterialsGlass properties and applicationsMicrowave Dielectric Ceramics Synthesis