Light emission and microstructure of Mg-doped AlGaN grown on patterned sapphire

A. Bell, R. Liu, Fernando Ponce, H. Amano, I. Akasaki, D. Cherns

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70 Scopus citations


The microstructure and optical properties of AlGaN:Mg grown on patterned substrates were reported. It was suggested that the surface properties of the lateral facet inhibited the formation of these defects. Extended lattice defects present in the materials grown directly on the sapphire substrate were found to inhibit the near-band-edge emission.

Original languageEnglish (US)
Pages (from-to)349-351
Number of pages3
JournalApplied Physics Letters
Issue number3
StatePublished - Jan 20 2003


ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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