Fig. 3From: An Investigation on a Crystalline-Silicon Solar Cell with Black Silicon Layer at the RearAbsorption spectra of a wafer Si, b-Si that faces the incident light, and b-Si with its back toward the incident light (a). PL of Si and b-Si under illumination of a 325-nm exciting laser (b). The inset shows the b-Si under illumination of the 325-nm laserBack to article page