Title :
Large-scale PV module manufacturing using ultra-thin polycrystalline silicon solar cells
Author :
Wohlgemuth, John ; Narayanan, Mohan ; Clark, Roger ; Koval, Tim ; Roncin, Steve ; Bennett, Murray ; Cunningham, Daniel ; Amin, Dinesh ; Creager, Joseph
Author_Institution :
BP Solar Int., Frederick, MD, USA
Abstract :
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 μm 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.
Keywords :
elemental semiconductors; ingots; semiconductor device manufacture; silicon; solar cells; 100 mum; 15.4 percent; Si; factory model; in-line manufacturing data reporting systems; ingot material quality; ingot size; large-scale PV module manufacturing; silicon feedstock industry production capacity; solar grade feedstock; thick silicon wafers; ultrathin polycrystalline silicon solar cells; wire saws; Large-scale systems; Manufacturing processes; Photovoltaic cells; Production facilities; Sawing machines; Semiconductor device modeling; Silicon; Subcontracting; Virtual manufacturing; Wire;
Conference_Titel :
Photovoltaic Specialists Conference, 2005. Conference Record of the Thirty-first IEEE
Print_ISBN :
0-7803-8707-4
DOI :
10.1109/PVSC.2005.1488307