Thermoelectric Effects: Semiclassical and Quantum Approaches from the Boltzmann Transport Equation

摘要: The thermoelectric efficiency of a material depends on its electronic and phononic properties. It is normally given in terms the dimensionless figure merit Z T = σ S 2 ∕ κ. parameters involved are electrical conductivity σ, Seebeck coefficient S, thermal has two contributions, κ e + L , electron lattice . In this chapter all these will be deduced for metals semiconductors, starting from Boltzmann transport equation (BTE). conductivity, coefficient, obtained BTE electrons. Similarly, or phonon phonons. ab initio approaches to obtain both via also analyzed. All theoretical studies based relaxation time approximation. expressions times electrons phonons discussed. results particularized nanostructures whenever possible.