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This work presents a detailed description and analysis of novel light trapping schemes, namely macroporous blind holes and diffuse rear reflectors with silicon nanopowder, for crystalline silicon solar cells. Electrochemical etching of macropores in n-type silicon is characterized and evaluated as a kerf-less wafering method in silicon. Furthermore, the impact of light trapping on the limiting efficiency of silicon solar cells is discussed.doi:10.15488/3736 fatcat:7ogwyn5v65g43ibnavq7r3w44u