Quantum dot formation on a strain-patterned epitaxial thin film

S. M. Wise, J. S. Lowengrub, J. S. Kim, K. Thornton, P. W. Voorhees, W. C. Johnson

Research output: Contribution to journalArticlepeer-review

81 Citations (Scopus)


We model the effect of substrate strain patterning on the self-assembly of quantum dots (QDs). When the surface energy is isotropic, we demonstrate that strain patterning via embedded substrate inclusions may result in ordered, self-organized QD arrays. However, for systems with strong cubic surface energy anisotropy, the same patterning does not readily lead to an ordered array of pyramids at long times. We conclude that the form of the surface energy anisotropy strongly influences the manner in which QDs self-assemble into regular arrays.

Original languageEnglish
Article number133102
Pages (from-to)1-3
Number of pages3
JournalApplied Physics Letters
Issue number13
Publication statusPublished - 2005 Sept 26
Externally publishedYes

Bibliographical note

Funding Information:
We gratefully acknowledge the support of the National Science Foundation through the Center for the Design of Nanoscopic Materials, Grant DMR0080016, and the Divisions of Materials Research and Mathematical Sciences.

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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