Self-assembly of GaAs quantum wires grown on (311)A substrates by droplet epitaxy

M. Jo, J.G. Keizer, T. Mano, P.M. Koenraad, K. Sakoda

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)


We report the formation of GaAs quantum wires (QWRs) on (311)A substrates by droplet epitaxy. High-density quantum dots coalesce to form wires oriented along the [233] direction as a result of atom diffusion triggered by thermal annealing. Luminescence from the QWRs is significantly polarized parallel to the wire direction, which would result in higher gain in lasers that use cleaved (011) surfaces as Fabry–Pérot mirrors. Lasing is obtained for a GaAs/AlGaAs QWR laser diode with fivefold-stacked QWR layers under pulsed operation at a low temperature.
Original languageEnglish
Article number055501
Pages (from-to)055501-1/3
Number of pages3
JournalApplied Physics Express
Publication statusPublished - 2011


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