A Possible Macroscopic-Photo-Catalysis Mechanism in Solar Furnace

Based on the experimental results of Chen et al. to use the solar furnace and medium frequency induction furnace to extract boron impurity from metallurgical silicon, we propose a strong radiation catalysis mechanism to explain the difference of reaction rates in these two furnaces. The postulate assuming the photons striking on the material not only increase the thermal energy of the molecules of reactants but also lower down the energy barrier of the reaction to speed up the chemical reaction. It is believed the photon catalysis mechanism is universal in most of high temperature chemical reactions and looking forward to more evidences for the postulate proposed in this article.     

强辐射催化法提纯多晶硅

将低纯度的金属硅,提纯成可用于制造太阳能电池的高纯硅材料的主要关键, 是去除材料中的硼杂质.本文提出了一种采用特殊的造渣过程以去除硼杂质的新方法.在这种新方法中,为了促进快速的化学反应,采用高密度的光子作为催化剂,以达到太阳能级硅材料的标准.本文对使用这种新的强辐射催化法炼硅的高温工具、冶炼方法、材料配方、材料的混合、以及渣剂的分离等关键技术,进行了详尽的公开和讨论,并在强辐射光催化原理的研究方面提出了一些探索性的机理.为了方便读者使用本文所提出的方法,建立起一套完整的提炼太阳能级硅材料的工业系统,本文也 关键词： 多晶硅提纯 光催化 太阳炉 除硼 除磷 多晶硅