Transcription of ANALYSIS OF TRACE ELEMENTS IN POLYSILICON …
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ANALYSIS OF TRACE ELEMENTS IN POLYSILICON …
ANALYSIS OF TRACE ELEMENTS IN POLYSILICON FOR solar APPLICATIONSC ompared to the metallurgical grade silicon materials, POLYSILICON used for solar industry has significantly higher purity, usually at or above or five nine purity. The remains are impurities such as C, O, and TRACE ELEMENTS such as Fe, Cu, Ni, etc. The amount of TRACE contaminants varies depending on the manufacturer, process, and sometimes, production less than or ten part per million by weight (ppm), the quantity and composition of TRACE contaminants in POLYSILICON have a profound effect on the photovoltaic devices.
ANALYSIS OF TRACE ELEMENTS IN POLYSILICON FOR SOLAR APPLICATIONS Compared to the metallurgical grade silicon materials, polysilicon used for solar industry has significantly higher purity, usually at or
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