Figure 4
From: Dense Ge nanocrystals embedded in TiO2 with exponentially increased photoconduction by field effect

Optical properties of Ge-TiO2 layers - experimental (continuous lines with symbols) and simulated (dashed lines) spectra for samples Sasd, S550 and S700: (a–c) transmission and reflection of layers on fused quartz substrate and (d–f) reflectance of layers on SiO2/Si substrate.