Seed-assisted cast quasi-single crystalline silicon for photovoltaic application: Towards high efficiency and low cost silicon solar cells
作者： Xin Gu , Xuegong Yu , Kuanxin Guo , Lin Chen , Dong Wang
DOI: 10.1016/J.SOLMAT.2012.02.024
关键词: Carrier lifetime 、 Silicon 、 Grain boundary 、 Materials science 、 Solar cell 、 Crystalline silicon 、 Optoelectronics 、 Monocrystalline silicon 、 Photovoltaic system 、 Substrate (electronics)
摘要: Abstract We have demonstrated the seed-assisted cast quasi-single crystalline (QSC) silicon technique to achieve high efficiency solar cells with low cost. Compared multicrystalline (mc) silicon, QSC has better material properties, having higher minority carrier lifetime and fewer grain boundaries dislocations. Furthermore, 〈100〉 oriented can a lower surface reflectance using alkaline texturing. Based on these two factors, of industrial size been improved by up 1% absolutely from mc-Si counterparts. Czochralski (CZ) cells, slightly but productivity negligible light-induced degradation. These results suggest great potential applied in photovoltaic industry as next generation substrate. To make more competitive industry, further efforts should be focused recycling seed crystals, coverage mono-region control structural defects.
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