Figure 4From: Structure and Luminescence Properties of Eu3+-Doped Cubic Mesoporous Silica Thin FilmsThe low-angle XRD patterns of the Eu3+ions-doped mesoporous silica thin films with an Eu/Si molar ratio of 2.57% calcined at 100°C (curve A), 400°C (curve B), 500°C (curve C), and 600°C (curve D) for 4 h (Fig. 4a) and corresponding second-order reflections (Fig. 4b)Back to article page