Abstract :
The formation of In-rich quantum dot structures will induce strain energy in the quantum well
layer, forming the clusters and stacking faults influencing the optical properties. Our results
showed different QW widths with the formation of various In-rich quantum dot structures and
different levels of strain energy. Upon thermal annealing, energy relaxation resulted in the
reshaping of quantum dots and hence the changes of optical properties. The results of
temperature variations of PL spectral peak, integrated PL intensity and PL decay time showed
consistent trends in varying strain energy distribution.
C
2006 Springer Science + Business Media, Inc.
