Large-Scale PV Module Manufacturing Using Ultra-Thin Polycrystalline Slicon Solar Cells. Annual Subcontract Report.

Wohlgemuth, J. ; Narayanan, M.

Technical Information Center Oak Ridge Tennessee

关键词: Polycrystalline;    Silicon solar cells;    Photovoltaic cells;    Manufacturing;    Production;   

RP-ID  :  DE200515011485

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The major objectives of this program are to continue the advancement of BP Solar polycrystalline silicon manufacturing technology. The program includes work in the following areas: Efforts in the casting area to increase ingot size, improve ingot material quality, and improve handling of silicon feedstock as it is loaded into the casting stations; developing wire saws to slice 100-m-thick silicon wafers on 290- m centers; developing equipment for demounting and subsequent handling of very thin silicon wafers; developing cell processes using 100-m-thick silicon wafers that produce encapsulated cells with efficiencies of at least 15.4% at an overall yield exceeding 95%; expanding existing in-line manufacturing data reporting systems to provide active process control; establishing a 50-MW (annual nominal capacity) green-field Mega-plant factory model template based on this new thin polycrystalline silicon technology; facilitating an increase in the silicon feedstock industry's production capacity for lower-cost solar-grade silicon feedstock.