POLYCRYSTALLINE SILICON SOLAR-CELLS WITH A MECHANICALLY FORMED TEXTURIZATION

被引:26
作者
BENDER, H [1 ]
SZLUFCIK, J [1 ]
NUSSBAUMER, H [1 ]
PALMERS, G [1 ]
EVRARD, O [1 ]
NIJS, J [1 ]
MERTENS, R [1 ]
BUCHER, E [1 ]
WILLEKE, G [1 ]
机构
[1] IMEC,B-3030 LOUVAIN,BELGIUM
关键词
D O I
10.1063/1.109628
中图分类号
O59 [应用物理学];
学科分类号
摘要
Polycrystalline (Wacker SILSO) silicon has been mechanically textured using a conventional dicing saw and beveled blades for V-groove formation. The minimum optical reflectivity achievable is limited by the blade tip radius and surface roughness after damage etching. Solar cells were prepared using a conventional diffusion and screen printed metallization. Grooved cells without an additional antireflection coating (j(sc) = 31.8 mA/cm2, V(oc) = 536 mV, FF = 69%, eta = 11.8%) showed a 20% increase in j(sc) and a 1.1% absolute efficiency improvement as compared to a nongrooved reference cell with an antireflexion coating (j(sc) = 26.4 mA/cm2 V(oc) = 547 mV, FF = 74.1%, eta = 10.7%). In grooved cells the efficiency is found to be limited mainly by the fill factor due to a nonoptimized front grid design.
引用
收藏
页码:2941 / 2942
页数:2
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