Figure 4From: Tuning the peak position of subwavelength silica nanosphere broadband antireflection coatingsSEM images. (a) CCTAB = 1.0 mM fresh suspension. (b) CCTAB = 1.9 mM fresh suspension. (c) CCTAB = 1.9 mM ageing suspension. Aggregations were indicated by black arrows. Scale bar = 500 nm.Back to article page