Manipulating the size distributions of quantum dots associated with strain-renormalized surface energy

Munt, T. P.; Jesson, D. E.; Shchukin, V. A.; Bimberg, D.
September 2004
Applied Physics Letters;9/6/2004, Vol. 85 Issue 10, p1784
Academic Journal
Utilizing computer simulations based on a continuity equation model, we propose a strategy for modifying three-dimensional quantum dot size distributions using a two-stage growth and anneal approach. The method simply requires that individual quantum dots have a minimum in their chemical potential as a function of island size, such as those associated with strain-renormalized surface energy. By depositing material for the required time, the island size distribution can be tuned to a desired size before removing the flux to narrow the distribution.


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