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ECN publication
Casting Technologies for Solar Silicon Wafers: Block Casting and Ribbon-Growth-on Substrate
Published by: Publication date:
ECN Solar Energy 1-9-2003
ECN report number: Document type:
ECN-RX--03-029 Conference Paper
Number of pages: Full text:
10 Download PDF  

Presented at: 10th International Autumn meeting "Gettering and defect engineering in semiconductor technology", Gadest (Berlin), Germany, 21-26 september 2003.


Multi-crystalline silicon solar wafer are the working horses of the rapidly developing photovoltaic market. The availability and cost efficiency but, even more important, the improved wafer quality and the understanding how to process multi-crystalline silicon wafers into highly efficient solar cells are important factors in this development. In this paper multi-crystalline silicon wafer manufacturing technologies both in industrial production as well as under development are outlined. Important wafer characteristics such as oxygen-, carbon and metallic impurities are described and experimental links to solar cell efficiency are exemplary demonstrated.

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