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A joint experimental and theoretical study on the electronic structure and photoluminescence properties of Al2(WO4)3 powders

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Academic year: 2020

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Fig. 2 illustrates a schematic representation for orthorhombic 241 Al 2 (WO 4 ) 3 unit cells modeled from Rietveld refinement data of 242 Al 2 (WO 4 ) 3 powders heat–treated at 1000 °C for 2 h
Fig. 2. Schematic representation of the orthorhombic unit cells corresponding to Al 2 (WO 4 ) 3 crystals.
Fig. 4. UV–vis spectra for the Al 2 (WO 4 ) 3 powders heat-treated at: (a) 100 °C, (b) 200 °C, (c) 400 °C, (d) 800 °C and (e) 1000 °C for 2 h, respectively.
Fig. 6. PL emission spectra for the Al 2 (WO 4 ) 3 powders heat-treated at (a) 100 °C, (b) 200 °C, (c) 400 °C, (d) 800 °C and (e) 1000 °C for 2 h, respectively.

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