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2012-02-15 17:43 |
【标准号】：SEMI PV17-0611
【标准名字】：Specification for Virgin Silicon Feedstock Materials for Photovoltaic Applications
【全文链接】：http://ams.semi.org/ebusiness/standards/SEMIStandardDetail.aspx?ProductID=211&DownloadID=2084
【摘要信息】：This Standard was technically approved by the global Photovoltaic Committee. This edition was approved for publication by the global Audits & Reviews Subcommittee on May 13, 2011. Available at www.semiviews.org and www.semi.org in June 2011.
Silicon is one of the key materials in the growing photovoltaic (PV) industry. Solar cells made of silicon will be manufactured for many years to come. New parties supplying or purchasing Si feedstock materials are entering this industry.
The need for higher volumes and more cost efficient feedstock Si triggered development of metallurgical refining methods. In addition new methods modifying the original Siemens process were investigated and were introduced in high volume manufacturing. In parallel to the development of refining methods a wide variety of crystallization techniques and solar cell designs, each requiring specific material properties, were investigated by industry and research organizations. A multidimensional parameter space would be necessary to describe all the relations between feedstock material quality, single and multicrystalline ingots and finally solar cell performance. These would result in a multitude of interface problems, inhibiting the relations between suppliers and their customers, that is not appropriate for a high volume and fast growing industry.
Standardized specifications for Si feedstock materials are expected to reduce these interface problems and to enable a common understanding of material properties and terms, allowing reliable manufacturing of ingots of solar cells and benefiting all parties.
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