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Nanoporous black silicon (nb–Si) structures with/without saw damage removal (SDR) on solar-grade multi-crystalline silicon substrates have been formed by simple Ag-induced chemical etching. The nb–Si shows a unique morphology of nano-scale holes on micron-scale patterns with low reflectance (<5%). The photovoltaic properties of nb–Si solar cells show that SDR process prior to Ag-induced chemical...
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