Next-generation multi-crystalline silicon solar cells: Diamond-wire sawing, nano-texture and high efficiency
作者： Fang Cao , Kexun Chen , Jingjiao Zhang , Xiaoya Ye , Jianjiang Li
DOI: 10.1016/J.SOLMAT.2015.05.030
关键词:
摘要: Abstract The absence of an effective texturing technique for diamond-wire sawn multi-crystalline silicon (DWS mc-Si) solar cells has hindered commercial upgrading from traditional multi-wire slurry (MWSS cells. In this paper, a nano-texture been developed to achieve 18.31% efficient DWS mc-Si on pilot production line. Their unique pyramidal nanostructure, which the most close-packed {111} surface Si diamond crystal, not only benefits both light-trapping and electric properties but also can effectively remove saw-marks amorphous layer Therefore, short-circuit current Isc nano-textured cell is ~324 mA higher than that micron-textured one, while its open-circuit voltage Voc does show evident decrease with increase area. paved way mass by satisfying exact requirements PV industry high efficiency low cost.
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