Abstract
A theory of polar-optical phonon-limited electron transport in GaN-based quantum wells is developed within the Boltzmann equation approach. The linearized Boltzmann equation is solved for a degenerate two-dimensional electron system using a ladder technique, enabling evaluations of the effective momentum relaxation time and the low-field electron mobility to be carried out. Variations of the effective momentum relaxation time with the well width, electron energy, lattice temperature, and electron density are explored in these heterostructures. The corresponding mobility is then evaluated and its variations with the well width, lattice temperature, and electron density displayed. Comparison is made, where appropriate, with the results emerging from the application of a low-energy approximation.
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