Verbesserte Solarzelle aus säulenförmigem, körnigem, polycrystallinem Silizium
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
DE69334310(D1)
申请公布日期
2010.02.11
申请号
DE1993634310
申请日期
1993.10.06
申请人
GE ENERGY (USA), LLC
发明人
HALL, ROBERT B.;BARNETT, ALLEN M.;BROWN, JACOB E.;CHECCHI, JOSEPH C.;FORD, DAVID H.;KENDALL, CHRISTOPHER L.;MULLIGAN,WILLIAM P.;RAND, JAMES A.;RUFFINS, TODD R.