Defect-related noise in AlN and AlGaN alloys

S. T.B. Goennenwein, R. Zeisel, S. Baldovino, O. Ambacher, M. S. Brandt, M. Stutzmann

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

The electronic noise properties of Si-doped AlN and Al0.3Ga0.7N are investigated. In AlN:Si, generation-recombination (g-r) noise is observed and shown to be linked to DX-centers. The potential energy barriers for capture into and emission from the DX- ground state are quantitatively determined from the noise measurements. In Al0.3Ga0.7N:Si, in addition to 1/f noise, we find two g-r noise processes. However, an unambiguous identification of their origin proves to be difficult.

Original languageEnglish
Pages (from-to)69-72
Number of pages4
JournalPhysica B: Condensed Matter
Volume308-310
DOIs
StatePublished - Dec 2001

Keywords

  • AlN
  • DX-center
  • Electronic noise
  • Group-III nitrides

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