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采用甚高频等离子体增强化学气相沉积(VHF-PECVD)法,成功制备出一系列从非晶到微晶过渡区域的硅薄膜。研究了气体压强对样品的微结构、光电特性、输运性质以及沉积速率的调控作用。结果表明,增大沉积气压可以提高材料的光敏性及沉积速率,但材料的结构有序度以及输运特性变差。

A series of transition films from amorphous to microcrystalline silicon was successfully prepared by very high frequency plasma enhanced chemical vapor deposition(VHF-PECVD).Effects of gas pressure on the microstructure,photoelectric and transport properties of the films were investigated.The results indicate that increase of gas pressure improve the photosensitivity and deposition rate,while the order degree of the microstructure and transport properties get worse.

参考文献

[1] Guha S.;Yang J.;Banerjee A.;Yan BJ.;Lord K. .High quality amorphous silicon materials and cells grown with hydrogen dilution[J].Solar Energy Materials and Solar Cells: An International Journal Devoted to Photovoltaic, Photothermal, and Photochemical Solar Energy Conversion,2003(1/4):329-347.
[2] Vavrunkova, V;Mullerova, J;Srnanek, R;Sutta, P .Structural changes studies of a-Si:H films deposited by PECVD under different hydrogen dilutions using various experimental techniques[J].Vacuum: Technology Applications & Ion Physics: The International Journal & Abstracting Service for Vacuum Science & Technology,2009(1):123-125.
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