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C-axis Oriented AIN Thin Films on Silicon Prepared by Ultrahigh Vacuum Evaporation of AI Combined with Post-Nitridation |
HUANG Ji-po;WANG Lian-wei;SHEN Qin-wo;GAO Jian-xia;NI Ru-shan;LIN Cheng-lu |
State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Metallurgy, Chinese Academy of Sciences, Shanghai, 200050 |
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Cite this article: |
HUANG Ji-po, WANG Lian-wei, SHEN Qin-wo et al 1998 Chin. Phys. Lett. 15 732-733 |
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Abstract A new technique for the preparation of AlN thin films by ultrahigh vacuum electron beam evaporation of AI followed by nitridation is reported and by using this method c-axis oriented AJN thin films have been success-fully grown on Si(111) substrates. X-ray diffraction, Fourier transform infrared spectroscopy, x-ray photoelectron spectroscopy and cross-sectional transmission electron microscope were employed to characterize AIN films. Temperature of nitridation was found to play an important role in the formation of AIN film. By post-nitridation of as-deposited film at 1000°C for lh in N2, the crystalline AlN film with (002) orientation has been obtained.
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Keywords:
68.55.-a
68.55.Jk
81.15.Ef
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Published: 01 October 1998
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