Original Articles |
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Investigation of Diamond Films Deposited on LaAIO3 Single Crystal Substrates by Hot Filament Chemical Vapor Deposition |
SHANG Nai-gui1;FANG Rong-chuan1;HANG Yin3;LI Jin-qiu1;HAN Si-jin1;SHAO Qing-yi1;CUI Jing-biao1,2;XU Cun-yi2 |
1Department of Physics, 2Structure Research Laboratory, University of Science and Technology of China, Hefei 230026
3Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230026
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Cite this article: |
SHANG Nai-gui, FANG Rong-chuan, HANG Yin et al 1998 Chin. Phys. Lett. 15 146-148 |
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Abstract Diamond nucleation and growth on a LaAIO3 single crystal substrate, whose lattice mismatch with diamond is only 7.2% at high temperature, were investigated for the first time. As an insulating substrate, a nucleation density of more than 108 cm-2 was achieved on ultrasonically cleaned wafers. A free-standing diamond film was obtained for 65 h growth and characterized by scanning electron microscopy, Raman and x-ray photoelectron spectroscopy. The results show that LaAIO3 single crystal is a good candidate substrate for diamond film growth.
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Keywords:
81.15.Gh
81.60.Cp
68.35.Dv
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Published: 01 February 1998
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PACS: |
81.15.Gh
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(Chemical vapor deposition (including plasma-enhanced CVD, MOCVD, ALD, etc.))
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81.60.Cp
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68.35.Dv
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(Composition, segregation; defects and impurities)
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