Titanium-added praseodymium silicate layers on Si(001) are promising high-k insulators for silicon-based nanoelectronic devices. Synchrotron radiation x-ray photoelectron spectroscopy was applied to study the effect of titanium additives on the praseodymium silicate/Si system. Nondestructive depth profiling by variation of the photon energy shows that thermal annealing activates the diffusion of deposited titanium into the praseodymium silicate. A homogeneous praseodymium titanium silicate layer is formed that shows high-quality electrical properties. (c) 2005 American Institute of Physics.
机构:Chinese Univ Hong Kong, Dept Elect Engn, Mat Sci & Technol Res Ctr, Shatin, Hong Kong, Peoples R China
Wang, L
Xue, K
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机构:Chinese Univ Hong Kong, Dept Elect Engn, Mat Sci & Technol Res Ctr, Shatin, Hong Kong, Peoples R China
Xue, K
Xu, JB
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Chinese Univ Hong Kong, Dept Elect Engn, Mat Sci & Technol Res Ctr, Shatin, Hong Kong, Peoples R ChinaChinese Univ Hong Kong, Dept Elect Engn, Mat Sci & Technol Res Ctr, Shatin, Hong Kong, Peoples R China
Xu, JB
Huang, AP
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机构:Chinese Univ Hong Kong, Dept Elect Engn, Mat Sci & Technol Res Ctr, Shatin, Hong Kong, Peoples R China
Huang, AP
Chu, PK
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机构:Chinese Univ Hong Kong, Dept Elect Engn, Mat Sci & Technol Res Ctr, Shatin, Hong Kong, Peoples R China