Figure 1From: Enhanced light absorption of amorphous silicon thin film by substrate control and ion irradiationCross-sectional view of silicon nanopillar arrays deposited on substrates coated by PS nanospheres with different diameters. (a) 0 (plain glass), (b) 200 nm, (c) 500 nm, and (d) 1,000 nm. The insets show the morphology of the corresponding PS nanosphere monolayer.Back to article page