Figure 2From: Structure and Luminescence Properties of Eu3+-Doped Cubic Mesoporous Silica Thin FilmsThe TEM micrographs of the Eu3+ions-doped mesoporous silica thin film with an Eu/Si molar ratio of 2.57% calcined at 400°C for 4 h along the [100] direction (a) and the [111] direction (b) of the body-centered cubic (Im3 m) mesostructure. The corresponding Fourier-transform patterns of the images are shown in the insetsBack to article page