Figure 2From: Optical characterization of porous silicon monolayers decorated with hydrogel microspheresIllustration of the three investigated structures. (a) pSi monolayer immersed in water, (b) pSi film decorated with swollen polyNIPAM spheres in water, and (c) pSi film decorated with collapsed polyNIPAM spheres in water/ethanol mixture (20 wt% ethanol).Back to article page