单晶黑硅太阳能电池特性研究

In this paper, characteristics of monocrystalline black silicon solar cells were investigated. Vertically aligned monocrystalline（100）silicon nanowires on p-type Si surface with pyramid structures were prepare by silver-nanoparticle-assisted etching. And in accordance with the monocrystalline solar cell production process，black silicon solar cells were prepared. Compared with the ordinary monocrystalline silicon solar cells, the black silicon solar cells have excellent anti-reflection capability, but the average performance of black silicon solar cells was lower than the ordinary monocrystalline silicon solar cells. By quantum efficiency measurement, software simulation and transient surface photovoltage response measurement, demonstrated that the main factors affecting the efficiency are surface recombination caused by surface defects and the presence of the dead layer in the nanostructure.