Fig. 4From: Optical and Electrical Characteristics of Silicon Nanowires Prepared by Electroless EtchingEDX analysis results of SiNW arrays after the etching processes: a before aqua regia cleaning (88.96 at.% Si and 11.04 at.% Ag) and b after aqua regia cleaning (100.00 at.% Si and 0.00 at.% Ag)Back to article page