Production of thin (70-100 /spl mu/m) crystalline silicon cells for conformable modules

Conference Record of the Twenty-Ninth IEEE Photovoltaic Specialists Conference, 2002. Pub Date : 2002-05-19 DOI:10.1109/PVSC.2002.1190468

D. Meier, J. Jessup, P. Hacke, S. Granata, N. Ishikawa, M. Emoto

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引用次数: 4

Abstract

PhosTop solar cells, having a back Al alloy p-n junction with a Ag/SiN/sub x//n/sup +/np/sup +//Al structure, were fabricated from dendritic web silicon substrates 70-100 /spl mu/m thick. High-throughput, automated production tools (screen printers, belt furnaces, etc.) were used to produce 3.3 cm /spl times/ 10.0 cm cells. Cell blanks remained essentially flat throughout the process, in spite of full back coverage by screen-printed and alloyed aluminum. The ability of thin web substrates to remain flat is tentatively attributed to three factors: the open structure of the aluminum layer (89% packing factor), the relatively small thickness of the aluminum layer (17 /spl mu/m), and the effective stiffening of the web substrate by slip dislocations pushed against internal twin planes. Cell efficiencies up to 14.1%, with excellent IQE, were obtained. These thin web cells were found to conform comfortably to the curved surface of a cylinder 15 cm in diameter. Demonstration modules, designed to fit around a pole 50 cm in diameter, were also fabricated.

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生产薄(70-100 /spl mu/m)的晶体硅电池

PhosTop太阳能电池采用70-100 /spl μ m厚度的树枝状网状硅衬底制备，其背面为Ag/SiN/sub x//n/sup +/np/sup +//Al结构的铝合金p-n结。采用高通量、自动化生产工具(丝网打印机、带式炉等)生产3.3 cm /spl次/ 10.0 cm的电池。在整个过程中，电池毛坯基本上保持平坦，尽管丝网印刷和合金铝覆盖了整个背面。薄板基板保持平整的能力暂定归因于三个因素:铝层的开放式结构(89%的填充系数)，铝层的相对较小的厚度(17 /spl mu/m)，以及由内部双平面推动的滑移位错对板基板的有效加强。电池效率高达14.1%，具有良好的IQE。这些薄的网状细胞被发现与直径为15厘米的圆柱体的曲面很好地吻合。演示模块，设计适合直径50厘米左右的杆，也制作。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Conference Record of the Twenty-Ninth IEEE Photovoltaic Specialists Conference, 2002.

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