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Figure 6 | Nanoscale Research Letters

Figure 6

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

Figure 6

External and normalized quantum efficiency of the solar cell. (a) The external quantum efficiency of the solar cell with different etching time. (b) The normalized external quantum efficiency of the solar cell with different etching time. The etching time ranged from 0.5 to 15 min.

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