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Table 2 The depth of hole at specific etching time and the corresponding wavelength with the same absorption depth

From: Periodic nano/micro-hole array silicon solar cell

  Etching Time (min)
  0.5 1 5 10 15
Depth (μm) 0.394 0.6 3.06 5.19 7.5
Wavelength (nm) 450 470 620 690 750