Characterization of hydrogen-terminated CVD diamond surfaces and their contact properties

H. Kawarada*, M. Aoki, H. Sasaki, K. Tsugawa

*この研究の対応する著者

研究成果: Article査読

67 被引用数 (Scopus)

抄録

Metal-diamond contact properties have been investigated on diamond (001) 2 × 1 surfaces. The 2 × 1 reconstruction has been examined by atomic-scale scanning tunnelling microscopy. From ab initio molecular orbital calculations, the stablest structure of the 2 × 1 unit is a monohydride carbon dimer. On the surfaces the highest quality Schottky diodes have been fabricated using metals with lower electronegativities. The Schottky barrier heights depend on the metal electronegativity. Moreover ohmic contacts have been obtained in metals with higher electronegativities. These results indicate that the surface states are effectively reduced by the 2 × 1 surface reconstruction.

本文言語English
ページ(範囲)961-965
ページ数5
ジャーナルDiamond and Related Materials
3
4-6
DOI
出版ステータスPublished - 1994 4

ASJC Scopus subject areas

  • 電子材料、光学材料、および磁性材料
  • 化学 (全般)
  • 機械工学
  • 材料化学
  • 電子工学および電気工学

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