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Effects of silyl concentration, hydrogen concentration, ion flux, and silyl surface diffusion length on microcrystalline silicon film growth

  • Materials (Organic, Inorganic, Electronic, Thin Films), Polymer, Fluidization, Particle Technology
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Abstract

Two sets of µc-Si: H films as a function of pressure were fabricated by very-high-frequency plasma enhanced chemical vapor deposition (VHF-PECVD). Deposition rate, Raman crystallinity, and photo/dark conductivity were investigated under both low and high power conditions. A plasma fluid model and a surface hydride-dependent precursor diffusion model were constructed to understand the evolution of microcrystalline silicon under low and high power conditions. Silyl, hydrogen, ion flux, silyl surface diffusion length are believed to have much influence on film growth rate, crystallinity and photo electronic properties. But the interesting point is that under a certain condition one or more of these parameters dominate µc-Si: H growth, while other parameters have weak influence. Short-life radicals are found to be the possible major factor on the deterioration of photo sensitivity of µc-Si: H films.

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Authors and Affiliations

  1. School of Chemistry and Chemical Engineering, Xinxiang University, Xinxiang, 453000, China

    Shutang Wen, Jingxiao Lu, Yuxiao Li & Zhiyong Du

  2. School of Physics and Engineering, Zhengzhou University, Zhengzhou, 450052, China

    Shutang Wen

  3. Physics Department, Xinxiang University, Xinxiang, 453000, China

    Liwei Zhang

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  1. Shutang Wen
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  2. Liwei Zhang
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  3. Jingxiao Lu
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  4. Yuxiao Li
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Correspondence to Jingxiao Lu.

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Wen, S., Zhang, L., Lu, J. et al. Effects of silyl concentration, hydrogen concentration, ion flux, and silyl surface diffusion length on microcrystalline silicon film growth. Korean J. Chem. Eng. 25, 1539–1545 (2008). https://doi.org/10.1007/s11814-008-0253-5

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  • DOI: https://doi.org/10.1007/s11814-008-0253-5

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