Figure 5From: The role of the surfaces in the photon absorption in Ge nanoclusters embedded in silica Tauc constant, Ge content, and the surfaces of Ge QDs. Comparison between the Tauc constant (B, triangles) as obtained from Tauc fits, the Ge content (D, circles) as measured by RBS, and the surfaces of Ge QDs (D/r, squares). All the values have been normalized to that of the as-deposited sample (color online).Back to article page