Journal
APPLIED PHYSICS LETTERS
Volume 102, Issue 11, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4798289
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Funding
- Advanced Environmental Materials, Green Network of Excellence (GRENE)
- Low-Carbon Research Network (LCnet)
- Nanotechnology Platform projects
- Ministry of Education, Culture, Sports, and Technology (MEXT) in Japan
- Grants-in-Aid for Scientific Research [23760319, 25420349, 25249054] Funding Source: KAKEN
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HfO2 films have been deposited on hydrogen-terminated diamond (H-diamond) by an atomic layer deposition (ALD) technique at 120 degrees C. Effect of rapid thermal annealing treatment on electrical properties of Au/Ti/Pd/ALD-HfO2/H-diamond metal-oxide-semiconductor (MOS) diodes has been investigated. The leakage current density of the MOS diode after annealing at 300 degrees C is as small as 10(-8) A/cm(2) at gate biases from -5.0 to 4.0 V. The capacitance-voltage curve in the depletion mode of the MOS diode after annealing is much sharper than that of the MOS diode before annealing and close to the theoretical dependence, which indicates the small interface state density. The annealed MOS diode is concluded to be more suitable for the fabrication of field effect transistors. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4798289]
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