硅纳米孔结构在多晶硅太阳能电池中的应用

Application of Silicon Nanopores to Multicrystalline Silicon Solar Cells

利用金属辅助化学刻蚀及碱修饰方法在多晶硅上制备了硅纳米孔结构,比较了硅纳米孔结构和酸制绒常规多晶硅硅片在反射、内量子效率、磷浓度分布以及电池性能等方面的情况。研究表明,硅纳米孔结构多晶硅太阳能电池开压为0.626 1V,短路电流为8.683A,填充因子为79.06%,效率为17.66%,比酸制绒常规电池片高出0.23%。

Silicon nanopores are fabricated by metal assisted chemical etching and subsequent alkali modification.By investigating the influence of silicon nanopores on reflectance,internal quantum efficiency,phosphorous doping concentration distribution,and cell performance,we have achieved an improved output performance of nanosturctured multicrystalline with an open circuit voltage of 0.6261V,short circuit current of 8.683 A,fill factor of 79.06%and conversion efficiency of 17.66% under AM 1.5Gillumination,which is about 0.23% higher than the acid textured counterparts.