发明名称 |
Improved columnar-grained polycrystalline solar cell and process of manufacture |
摘要 |
<p>The invention relates to techniques for manufacturing columnar-grained polycrystalline sheets which have particular utility as substrates or wafers for solar cells. The sheet is made by applying granular silicon to a setter material which supports the granular material. The setter material and granular silicon are subjected to a thermal profile all of which promote columnar growth by melting the silicon from the top downwardly. The thermal profile sequentially creates a melt region at the top of the granular silicon and then a growth region where both liquid and a growing polycrystalline sheet layer coexist. An annealing region is created where the temperature of the grown polycrystalline silicon sheet layer in controllably reduced to effect stress relief. <IMAGE></p> |
申请公布号 |
AU667130(B2) |
申请公布日期 |
1996.03.07 |
申请号 |
AU19930048911 |
申请日期 |
1993.10.08 |
申请人 |
ASTROPOWER INC. |
发明人 |
ROBERT B. HALL;ALLEN M. BARNETT;JACOB E. BROWN;JOSEPH C. CHECCHI;DAVID H. FORD;CHRISTOPHER L. KENDALL;WILLIAM P. MULLIGAN;JAMES A. RAND;TODD R. RUFFINS |
分类号 |
H01L31/04;H01L21/36;H01L31/036;H01L31/0368;H01L31/18;(IPC1-7):H01L31/18;H01L31/09 |
主分类号 |
H01L31/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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