AUGER CARRIER CAPTURE KINETICS IN SELF-ASSEMBLED QUANTUM-DOT STRUCTURES

We establish rate equations to describe Auger carrier capture kinetics in quantum dot structures, calculate Auger capture coefficients for s elf-assembled quantum dots, and analyze Auger capture kinetics using t hese equations. We show that Auger capture times can be of the order o f 1-100 ps depending on barrier carrier and dot densities. Auger captu re rates depend strongly on dot diameters and are greatest at dot diam eters of about 10-20 nm. (C) 1998 American Institute of Physics.