Abstract
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.
| Original language | English |
|---|---|
| Pages (from-to) | 961-965 |
| Number of pages | 5 |
| Journal | Diamond and Related Materials |
| Volume | 3 |
| Issue number | 4-6 |
| DOIs | |
| Publication status | Published - 1994 |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Materials Chemistry
- Surfaces, Coatings and Films
- Surfaces and Interfaces
Cite this
Characterization of hydrogen-terminated CVD diamond surfaces and their contact properties. / Kawarada, Hiroshi; Aoki, M.; Sasaki, H.; Tsugawa, K.
In: Diamond and Related Materials, Vol. 3, No. 4-6, 1994, p. 961-965.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Characterization of hydrogen-terminated CVD diamond surfaces and their contact properties
AU - Kawarada, Hiroshi
AU - Aoki, M.
AU - Sasaki, H.
AU - Tsugawa, K.
PY - 1994
Y1 - 1994
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0028415963&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0028415963&partnerID=8YFLogxK
U2 - 10.1016/0925-9635(94)90309-3
DO - 10.1016/0925-9635(94)90309-3
M3 - Article
AN - SCOPUS:0028415963
VL - 3
SP - 961
EP - 965
JO - Diamond and Related Materials
JF - Diamond and Related Materials
SN - 0925-9635
IS - 4-6
ER -