a-Si1-xGex合金膜の組成分析

概要

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Simple and reasonably accurate methods for determining the composition in a-Si1-xGex films have been proposed. The first one uses the X-ray fluorescence intensity of Ge-Kα line and the weight of the film. The second one uses the X-ray fluorescence intensities of both Ge-Kα line and Si-Kα line. The third one utilizes the signal intensities of Ge and Si ions in ion-micro analysis (IMA). In the latter two methods, a series of a-Si1-xGex films of which compositions have been determined by the first method are used as a standard. Advantages and disadvantages of these methods have been described. The compositions of a-Si1-xGex films prepared by the glow-discharge technique have been determined by the third method. The results agree quite well with the values which are estimated based on the deposition rate.
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