Self Assembly and Beyond for Semiconductor
Quantum Dots on GaAs(001) Surfaces
Kurt G. Eyink
Air Force Research Laboratories
Abstract
The growth and fabrication of quantum dots have been
receiving a considerable amount of attention due to
their unique properties. A review of the basic
properties of quantum dots, as well as potential
applications will be discussed. One technique, which
has been used to fabricate these structures, is
molecular beam epitaxy. Typically a self-assembly
process occurs which allows these dots to form,
however several new approaches are being studied to
look at the possibility to enhance their uniformity in
size and to allow precise placement on the surface.
The self-assembly process will be analyzed in the
context of a nucleation and growth phenomena and
ramifications about the processes of directed assembly
will be discussed. Finally several new approaches to
quantum dot formation that we are pursuing will be
discussed.