Physics – Condensed Matter – Materials Science
Scientific paper
2007-01-19
Chinese Journal of Chemistry, 2004, 22, 661 667
Physics
Condensed Matter
Materials Science
A novel method for Al2O3 passivation on semiconductors
Scientific paper
Thin aluminum oxide films were deposited by a new and simple physicochemical method called chemical liquid phase deposition (CLD) on semiconductor materials. Aluminum sulfate with crystallized water and sodium bicarbonate were used as precursors for film growth, and the control of the system pH value played an important role in this experiment. The growth rate is 12 nm/h at room temperature. Post-growth annealing not only densifies and purifies the films, but results in film crystallization as well. Excellent quality of Al2O3 films in this work is supported by electron dispersion spectroscopy, Fourier transform infrared spectrum, X-ray diffraction spectrum and scanning electron microscopy photograph.
Sun Jie
Sun Yingchun
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