| A Movable Mass Spectroscopy Sampling Apparatus for Measuring Spatial Distribution of Neutral Radicals in Silane Plasma |
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| 作者姓名： | 王照奎 林揆训 林璇英 邱桂明 祝祖送 |
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| 作者单位： | DepartmentofPhysics,ShantouUniversity,Shantou515063 |
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| 摘 要： | A movable mass spectroscopy gas sampling apparatus has been established and a straight-line fit of silane depletion fraction f is proposed. The spatial density distributions of SiHn (n=0-3) radicals in silane radio frequency glow discharge have been measured by a mass spectrometer. The experimental results demonstrate that the densities of the neutral radicals have the peak value near the middle position of electrodes, and the densities of SiH2 and SiH3 are higher than those of Si and SiH in silane plasma. This reveals that SiH2 and SiH3 may be the primary precursors in forming the a-Si:H film.
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| 关 键 词： | 质谱分析仪器 气体采样 空间分布 中性基 硅烷等离子体 |
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