硅太阳电池的电极优化  

OPTIMUM DESIGN OF METAL ELECTRODES OF SILICON SOLAR CELL

作　　者：任丽[1] 王倩[1,2] 张东 卢川 杜学国 

机构地区：[1]河北工业大学,天津300130 [2]巨力新能源有限公司,河北072550

出　　处：《太阳能学报》2013年第10期1746-1749,共4页Acta Energiae Solaris Sinica

摘　　要：以156mm×156mm多晶硅太阳电池为研究对象,通过理论计算和实验研究,对3种不同主栅和副栅设计的太阳电池进行功率损耗和各性能参数的对比,探寻出一种优化的电极设计。实验结果表明:3条主栅线、70μm细栅线宽度的电池效率比2条主栅线、70μm细栅线宽度的电池效率高1.38%;2栅70μm栅线宽度的电池效率比80μm栅线宽度的电池效率高1.14%。3条主栅的设计可增加太阳电池在短波范围内的光谱响应,提高电流的收集效率,从而有效地减少太阳电池工作过程中的功率损耗,提高光电转换效率。156mm × 156mm multi-crystalline silicon solar cells were manufactured with p type base of 1-3Ω·cm and n type emitter of 65-70Ω/□. Three kinds of electrode designs, 3-busbar-70μm-grid, 2-busbar-70μm-grid and 2-busba-80μm were explored. The power losses of solar cells both in theoretical calculation and practical experimental method with these three designs were compared. The experimental results show that the 3-busbar-70μm-grid can increase power output of the solar cell by 1.38% than 2-busbar-70μm-grid. Conversion efficiency of solar cell with 2-busbar-70μm-grid is 1.14% higher than solar cell with 2-busbar-80μm-grid. The QE of solar cells with 3-busbar-70μm-grid has better short wavelength response comparing with 2-busbar-70μm-grid, which results in a higher current and a lower power loss.

关 键 词：硅太阳电池 功率 主栅 电极优化 

分 类 号：TK514[动力工程及工程热物理—热能工程]