Low-noise GaN Schottky diodes on Si(111) by molecular beam epitaxy

Peter W. Deelman, Robert N. Bicknell-Tassius, Sergey Nikishin, Vladimir Kuryatkov, Henryk Temkin

Research output: Contribution to journalArticlepeer-review

19 Scopus citations

Abstract

We report on the achievement of mesa-isolated Schottky diodes fabricated from n-GaN epilayers grown by gas-source molecular beam epitaxy on Si(111) that exhibit extremely low noise and dark current. Silicon dioxide grown by plasma-enhanced chemical vapor deposition provided both surface passivation and electrical isolation, and the Schottky contact was a 10 nm Pd thin film. The dark current of an 86×86 μm2 diode was 2.10 × 10-8 A/cm2 at -2 V bias, and the zero-bias noise power density at 1 Hz is as low a 9 × 10-29 A2/Hz.

Original languageEnglish
Pages (from-to)2172-2174
Number of pages3
JournalApplied Physics Letters
Volume78
Issue number15
DOIs
StatePublished - Apr 9 2001

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