FABRICATION OF LARGE-AREA BORON BACKFIELD SILICON SOLAR CELLS

摘要：

Both boron back field and aluminum back field can be used in the production of solar cells. The backfield could make sure solar cells have higher open circle voltage and higher conversion efficiency. The aluminum has the advantage of low cost and simpleness, so it is suitable for commercial production. But the aluminum backfield structure is not suit for new structure cells. Up to now, the boron backfield commonly used in the fabrication of space solar cells. This paper will introduce how to realize boron backfield structure in commercial large-area cells production, and combine the boron backfield with screening, sintering and other technics. At last, we obtained solar cells with the open-circuit voltage of 600mV with boron diffusion, using p-type silicon wafer with resistance of 2Ω·cm, with the size of 125mm×125mm.

作者: Yu Tiantian Li Hongbo Zhang Mengyan Chen Mingbo

作者单位: Shanghai Solar Energy Research Center Second Shanghai Institute of Space Power-sourc

会议类型: 国际会议

会议名称: 2007世界太阳能大会(Proceedings of ISES Solar World Congress 2007)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-09-18（万方平台首次上网日期，不代表论文的发表时间）