Dynamics of self-organized epitaxial island formation under controlled annealing

Y. Ni, A. K. Soh, L. H. He

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

Abstract

It is a well known fact that strain-driven self-assembly via Stranski-Krastonov growth is a promising way to fabricate ordered quantum dot array. However, control of the morphology remains to be a critical issue. One approach towards controlled self-assembly is, but not limited to, epitaxial growth on patterned substrates or patterned epilayers. The possibility of controlling the growth morphology of quantum dots upon patterned substrates and patterned epilayers is explored by numerical studies of three-dimensional phase field simulation. The results indicate that, by creating appropriate patterns, such as topographical pattern created in the substrate or epilayer, and periodically strained substrate, etc, the initial strain distributions on the surfaces of the substrate or epilayer can be altered, and thus the subsequent evolution path of surface morphology under annealing can be controlled efficiently. This may lead to highly ordered quantum dot array.

Original languageEnglish
Title of host publicationIUTAM Symposium on Mechanical Behavior and Micro-Mechanics of Nanostructured Materials - Proceedings of the IUTAM Symposium
PublisherSpringer
Pages219-228
Number of pages10
ISBN (Print)1402056230, 9781402056239
DOIs
Publication statusPublished - 2007
Externally publishedYes
EventIUTAM Symposium on Mechanical Behavior and Micro-Mechanics of Nanostructured Materials 2005 - Beijing, China
Duration: 27 Jun 200530 Jun 2005
https://link.springer.com/book/10.1007/978-1-4020-5624-6 (Proceedings)

Publication series

NameSolid Mechanics and its Applications
Volume144
ISSN (Print)1875-3507

Conference

ConferenceIUTAM Symposium on Mechanical Behavior and Micro-Mechanics of Nanostructured Materials 2005
Country/TerritoryChina
CityBeijing
Period27/06/0530/06/05
Internet address

Keywords

  • Epitaxy
  • Pattern formation
  • Phase field method
  • Surface morphology

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