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Ripening of self-organized InAs quantum dots by K Pötschke; L Müller-Kirsch; R Heitz; R.L Sellin; U.W Pohl; D Bimberg; N Zakharov; P Werner is a Physics and Astronomy article available to read on EtoBox.
What is Ripening of self-organized InAs quantum dots about?
The temporal evolution of the size and the shape of self-organized InAs/GaAs quantum dots (QDs) grown using MOCVD is investigated. During a growth interruption after the deposition of the QD material a ripening process is observed, where some QDs grow at the expense of other QDs. A multimodal distribution of the QD ground-state transition energies is observed and attributed to QDs di ering in height by entire numbers of atomic monolayers. This distribution is used to track the evolution of the QD ensemble during the growth interruption more detailed. A shape transition from very at, truncated-pyramid-like QDs to higher, more pyramidal QDs is suggested. An additional antimony ux at the end of the growth interruption leads to an accelerated ripening resulting in a signiÿcant red shift of the QD luminescence, which is explained by the surfactant properties of antimony on InAs.
Who reads Ripening of self-organized InAs quantum dots?
It is typically read by researchers, students, and practitioners in Physics and Astronomy.
- Author
- K Pötschke; L Müller-Kirsch; R Heitz; R.L Sellin; U.W Pohl; D Bimberg; N Zakharov; P Werner
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 1386-9477)
- Published
- 2004
- Language
- EN
- Field
- Physics and Astronomy (Physical Sciences)