Observation of zinc oxide quantum pyramids grown by plasma enhanced molecular beam epitaxy

Yefan Chen*, D. M. Bagnall, Ziqiang Zhu, Takashi Sekiuchi, Ki tae Park, Kenji Hiraga, Takafumi Yao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

ZnO quantum pyramids have been grown by plasma enhanced molecular beam epitaxy on a ZnO buffer layer pre-grown on (0001) sapphire substrate. These pyramids with well-defined facets appear to have uniform size of height around 25 nm. Monochromatic cathode luminescence images reveal strong near band gap emission from the quantum pyramids when compare to the buffer layer underneath. Room temperature stimulated emission was obtained from these samples.

Original languageEnglish
Pages (from-to)107-110
Number of pages4
JournalMolecular Crystals and Liquid Crystals Science and Technology Section B: Nonlinear Optics
Volume18
Issue number2-4
Publication statusPublished - 1997
Externally publishedYes

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