Optical properties of V2O5 crystals

The multi-band luminescence and the excitation spectra, and the spectral reflectance of the undoped V
2
O
5
in nano- and bulk-crystalline form at room temperature in the spectral range 200–900 nm were investigated. The nature of luminescence (peaked about 650 nm) is discussed with account of reflectance spectra and Electron Paramagnetic Resonance (EPR) investigations.