Fig. 3From: Electrodeposition of nano-Cu, Ni and binary Ni/Cu into nano-porous AAO layer for high-efficiency black spectrally selective coatingScanning electron microscope images of the electrolytically colored aluminum samples by (1) Ni, (2) mixture of Ni/Cu, (3) Cu for 20 min, (4) Cu for 30 min and (5) Cu for 60 minBack to article page