Optimization of sodium carbonate texturization on large-area crystalline silicon solar cells
Optimization of sodium carbonate texturization on large-area crystalline silicon solar cells
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DOI：
10.1016/j.solmat.2007.08.001
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发表时间：
2007-12
影响因子：
6.9
通讯作者：
N. Marrero;B. González-Díaz;R. Guerrero-Lemus;D. Borchert;C. Hernández-Rodríguez
中科院分区：
文献类型：
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作者：
N. Marrero;B. González-Díaz;R. Guerrero-Lemus;D. Borchert;C. Hernández-Rodríguez
这项工作描述了一种基于碳酸钠和碳酸氢钠溶液混合物的单晶硅太阳能电池的织构化方法。现已发现一种特定的解决方案，可实现最佳蚀刻速率、最低表面反射率以及硅表面金字塔结构的均匀密度。随后的快速热处理磷扩散已被修改，以大大减少处理时间，同时获得高度均匀的薄层电阻值和改善的光载流子寿命。 100×100mm 太阳能电池的效率为 15.8%，而参考电池的效率为 14.7%。
This work describes a texturization method for monocrystalline silicon solar cells based on a mixture of sodium carbonate and sodium hydrogen carbonate solutions. A specific solution has been found that results in an optimal etching rate, the lowest surface reflectance and a homogeneous density of pyramidal structures on the silicon surface. The subsequent phosphorus diffusion with rapid thermal processes has been modified in order to drastically reduce the process time and, simultaneously, to obtain a high homogeneity of the sheet resistance values and improved photocarriers lifetimes. 100×100mm solar cells with an efficiency of 15.8% have been obtained compared to an efficiency of 14.7% for the reference cell.