Valence-Band Discontinuity at the AIN/Si Interface

Hiroyasu Ishikawa, Baijun Zhang, Takashi Egawa, Takashi Jimbo

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)


The major problems of GaN-based light-emitting diodes on Si are their high series resistances and high operating voltages due to the large band discontinuity at the AlN/Si interface. We have observed the valence-band discontinuity at the AlN/Si interface using X-ray photoelectron spectroscopy (XPS). The valence- and conduction-band discontinuity values at the AlN/Si interface were found to be 2.8 ± 0.4 eV and 2.3 ± 0.4 eV, respectively.

Original languageEnglish
Pages (from-to)6413-6414
Number of pages2
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Issue number10
Publication statusPublished - 2003 Oct
Externally publishedYes


  • AIN
  • Band discontinuity
  • GaN
  • Si

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


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