Thermal conductivity of group IV elemental semiconductors
A. V. Inyushkin
Abstract
The thermal conductivity of group IV elements—germanium, silicon, and diamond—is described in order to demonstrate various important and interesting aspects of the mechanism of phonon heat transfer in single-crystalline semiconductors and dielectrics. The measured temperature dependence of thermal conductivity κ(T) for these materials reveals different phonon scattering processes that determine thermal conductivity. In addition to the intrinsic processes of phonon–phonon scattering, scattering by isotopes, dopants, free electrons, sample surfaces, the effects of phonon focusing, irradiation with high-energy particles, and phonon hydrodynamics are discussed.
Topics & Concepts
Thermal conductivityPhononDiamondGermaniumMaterials sciencePhonon scatteringDopantSemiconductorCondensed matter physicsScatteringSiliconDopingPhysicsOptoelectronicsOpticsComposite materialThermal properties of materialsHigh-pressure geophysics and materialsThermal Expansion and Ionic Conductivity