Figure 6From: Monitoring of degradation of porous silicon photonic crystals using digital photographyEOT changes observed during the degradation of the two porous Si sample types. Plots showing the relative change in the effective optical thickness (EOT) of the pSi samples as a function of time exposed to 1:1 (v/v) 0.5 M carbonate/borate buffer (pH 10), ethanol at 20 ± 1°C.Back to article page