Guided quantum dot ordering by self-organized anisotropic strain engineering and step engineering on shallow-patterned substrates

E. Selcuk, T. Lippen, van, G.J. Hamhuis, R. Nötzel

Research output: Contribution to journalArticleAcademicpeer-review

3 Citations (Scopus)
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Abstract

Complex laterally ordered architectures of InGaAs quantum dot (QD) arrays are created by self-organized anisotropic strain engineering guided through steps generated on shallow mesa-patterned GaAs (3 1 1)B substrates. On stripe-patterned substrates the well-ordered, spot-like arrangement of ordered QD groups on planar, unpatterned substrates is transformed into a zigzag arrangement of periodic stripes which become straight, well ordered, and connected over macroscopic distances on zigzag mesa-patterned substrates. These findings highlight the concept of guided self-organized QD ordering for formation of complex QD architectures, establishing the building blocks for future quantum functional devices.
Original languageEnglish
Pages (from-to)701-704
Number of pages4
JournalJournal of Crystal Growth
Volume301-302
Issue number1
DOIs
Publication statusPublished - 2007

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