冶金法制备太阳能级硅工艺及其进展  

New process and research progress of production of solar grade poly silicon by metallurgical method

作　　者：刘玉[1,2,3] 卢东亮[1,2,3] 胡玉燕[1,2,3] 林涛[1,2,3] 王博[1,2,3] 孙艳辉[1] 陈红雨[2,3] 

机构地区：[1]华南师范大学化学与环境学院,广东广州510006 [2]广东高校储能与动力电池产学研结合示范基地,广东广州510006 [3]电化学储能材料与技术教育部工程研究中心,广东广州510006

出　　处：《材料研究与应用》2010年第4期278-281,共4页Materials Research and Application

基　　金：国家重点基础研究发展计划(973计划)项目(2009CB226109)

摘　　要：近几年来,用冶金法提纯冶金级硅,制造太阳能级多晶硅取得了可喜的成绩,但是,硅料中杂质的彼此影响和杂质浓度对电池转化效率的作用、以及冶金过程中装料坩埚对硅料的二次污染是产业化过程中面临的两个难题,前者的作用机理尚不明确,后者工艺的有待改进,无论哪一点都对用冶金法提纯多晶硅提出了挑战.本文对这些问题进行了分析,并介绍了当前国外的一些新的研究成果和工艺.In recent years,though are the gratifying achievements gotten in the process of purifying metallurgical grade silicon to solar grade silicon by metallurgical method,there are also two large challenges in further purification. First,the impurities existing in the charged materials affect not only each other but also the translation efficiency of the cells; secondly,impurities were introduced into the silicon by the crucible during the process. The mechanism of the former one is still undefined,and the purification techniques of the second one need to be improved. In this paper,these two common problems as well as some new achievements and techniques development are introduced.

关 键 词：冶金法 提纯 杂质浓度 二次污染 

分 类 号：TQ133.1[化学工程—无机化工]