Figure 1From: Formation of Nb2O5 matrix and Vis-NIR absorption in Nb-Ge-O thin filmXRD pattern of Nb-Ge-O thin films with different Ge contents. Dots indicate orthorhombic Nb2O5, circles indicate NbO2, and squares indicate Ge. Labels A through D indicate Ge concentrations of 0, 1.8 at.%, 4.9 at.%, and 5.5 at.%.Back to article page