【摘 要】
：
n-type PERT (passivated emitter,rear totally diffused) bifacial solar cells with boron and phosphorus diffusion as p+ emitter and n+ BSF (back surface field) have attracted significant research intere
【机 构】
：
College of Information and Communication Engineering,Sungkyunkwan University,Korea
【出 处】
：
SNEC 第十届(2016)国际太阳能产业及光伏工程(上海)论坛
论文部分内容阅读
n-type PERT (passivated emitter,rear totally diffused) bifacial solar cells with boron and phosphorus diffusion as p+ emitter and n+ BSF (back surface field) have attracted significant research interest recently.In this work,the influences of wafer thickness,bulk lifetime,emitter,BSF on the photovoltaic characteristics of solar cells are discussed.The performance of the solar cell is determined by using one-dimensional solar cell simulation software PC1D.The simulation results show that the key role of the BSF is to decrease the surface doping concentration reducing the recombination and thus,increasing the cell efficiency.A lightly phosphorus doped BSF (LD BSF) was experimentally optimized to get low surface dopant concentration for n type bifacial solar cells.Pre-oxidation combined with a multi-plateau drive-in,using limited source diffusion was carried out before pre-deposition.It could reduce the surface dopant concentration with minimal impact on the sheet resistance.
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