Minority carrier transport properties are an indicator of AlGaN quality. Th
is characteristic is particularly of significant importance for AlGaN-based
bipolar devices. The goal of this review is to discuss different factors -
temperature, doping level, dislocation density, electron current density -
which affect minority carrier mobility, lifetime, and diffusion length, an
d to relate the changes in AlGaN transport properties to the functionality
of electronic and optoelectronic devices. (C) 2001 Elsevier Science Ltd. Al
l rights reserved.