Investigations of SiO2/n-GaN and Si3N4/n-GaN insulator-semiconductor interfaces with low interface state density

S. Arulkumaran, T. Egawa, H. Ishikawa, T. Jimbo, M. Umeno

研究成果: Article査読

187 被引用数 (Scopus)

抄録

The electrical properties of electron beam (EB) evaporated silicon dioxide (SiO2)/n-GaN, plasma enhanced chemical vapor deposited (PECVD) SiO2/n-GaN, and PECVD silicon nitride (Si3N4)/n-GaN interfaces were investigated using high frequency capacitance-voltage measurements. Compositions of the deposited insulating layers (SiO2 and Si3N4) were analyzed using x-ray photoelectron spectroscopy. Metal-insulator-semiconductor structures were fabricated on the metalorganic chemical vapor deposition grown n-type GaN layers using EB, PECVD grown SiO2 and PECVD grown Si3N4 layers. Minimum interface state density (2.5×1011eV-1cm-2) has been observed in the PECVD grown SiO2/n-GaN interface when it was compared with EB evaporated SiO2/n-GaN interface (5.3×1011eV-1cm-2) and PECVD Si3N4/n-GaN interface (6.5×1011eV-1cm-2). The interface state density (Nf) depends on the composition of deposited insulating layers.

本文言語English
ページ(範囲)809-811
ページ数3
ジャーナルApplied Physics Letters
73
6
DOI
出版ステータスPublished - 1998
外部発表はい

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

フィンガープリント 「Investigations of SiO<sub>2</sub>/n-GaN and Si<sub>3</sub>N<sub>4</sub>/n-GaN insulator-semiconductor interfaces with low interface state density」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル