Fig. 8From: Optical Properties and Growth Mechanism of La3Ga5.5Nb0.5O14 Macroporous CeramicAbsorption spectra of the La3Ga5.5Nb0.5O14 powders annealed at 600–800 °C for 3 h measured at room temperature. The inset is the behavior of optical absorption as the function of photon energy for La3Ga5.5Nb0.5O14 macroporous at 800 °CBack to article page