Nucleation-step study of silicon homoepitaxy for low-temperature fabrication of Si solar cells

A. Mosleh, S. Ghetmiri, B. Conley, H. Abu-Safe, Z. Waqar, M. Benamara, Shui-Qing Yu, H. Naseem
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引用次数: 2

Abstract

Smooth nucleation of silicon has been achieved as a critical step in epitaxial growth process using ultra high vacuum chemical vapor deposition system at 250°C. Proper conditions were achieved by studying the effect of key nucleation parameters such as plasma power, hydrogen dilution and deposition temperature. High-resolution transmission electron microscopy has been employed to study rough nucleation condition in order to achieve perfect nucleation step, which resulted in high quality epilayers.
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低温制备硅太阳能电池中硅同外延的成核步进研究
利用250°C的超高真空化学气相沉积系统实现了硅的光滑成核,这是外延生长过程中的关键步骤。通过对等离子体功率、氢稀释度和沉积温度等关键成核参数的影响研究,确定了合适的成核条件。采用高分辨率透射电镜对粗成核条件进行研究,以达到完美成核步骤,从而获得高质量的脱毛膜。
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