《Table 1 Effects of the etching time on the porousity and thickness of the PS layer表1刻蚀时间对多孔硅孔隙度和厚度的

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《表面多孔硅层对单晶硅太阳电池性能的影响（英文）》

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On the basis of Equation（1）and（2），Table 1shows the calculated results that the variation of the porosity and thickness at diverse anodization time，and that the porosity and thickness are very sensitive to the change of the reaction time.As the etching time increases，the porosity of the PS layer increases slightly at a fixed mole ratio of HF and C2H5HO，while the thickness grows rapidly.We can also notice that the average growth kinetics of the thickness is around 1.77μm/min in our range by means of linear fitting.