Structural and spectroscopic comparison between polycrystalline, nanocrystalline and quantum dot visible light photo-catalyst Bi2WO6
Hartmann, Lars Robben , Andreas Rosenauer , Lutz Mädler and Thorsten M. Gesing . Journal of Solid State Chemistry (2017) 254 , 82–89. http://dx.doi.org/10.1016/j.jssc.2017.07.013 The structural and spe [...] Polycrystalline (PC), nanocrystalline (NC) and quantum dot (QD) sized samples were produced using solid state reaction, hydrothermal and flame spray pyrolysis methods, respectively. While the crystal structures [...] on electron microscopy. The Raman spectra of the samples are compared with the phonon density of states calculated by DFT. A continuous phenomenological model describes selective optical phonon confinement