Figure 7From: Evaluation of optical and electronic properties of silicon nano-agglomerates embedded in SRO: applying density functional theoryPL spectra and photoluminescence. PL spectra obtained from a sample of porous silicon at different temperatures, measured in vacuum conditions (left side) and photoluminescence for SRO with Ro = 10, 20, and 30 before (T0) and after (T180) annealing at 1,100°C for 180 min, for an excitation wavelength of 270 nm (right side).Back to article page