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Large-scale PV module manufacturing using ultra-thin polycrystalline silicon solar cells

By: Creager, J.; Amin, D.; Cunningham, D.; Bennett, M.; Wohlgemuth, J.; Koval, T.; Clark, R.; Narayanan, M.; Roncin, S.;

2005 / IEEE / 0-7803-8707-4

Description

This item was taken from the IEEE Conference ' Large-scale PV module manufacturing using ultra-thin polycrystalline silicon solar cells ' This paper will report on the work performed by BP Solar during the first two years of NREL PVMaT subcontract #ZDO-2-30628-03. The major objectives of this program are to continue the advancement of BP Solar's multicrystalline silicon manufacturing technology to: increase ingot size; improve ingot material quality; develop wire saws to slice 100 /spl mu/m thick silicon wafers; develop equipment for demounting and handling of ultra-thin wafers; develop cell processes that produce cells with efficiencies of at least 15.4% at an overall yield exceeding 95%; expand existing in-line manufacturing data reporting systems; establish a 50 MW factory model; and facilitate an increase in the silicon feedstock industry's production capacity for lower-cost solar grade feedstock.