TEM images of nanoribbons and nanosheets  of VO2  DSC of nanoribbons (top) and nanosheets  (bottom) of VO2  Hydrothermal recrystallization offers a flexible, low  temperature method for synthesis of nanocrystals  of different vanadium oxides. Use of different ligands  makes it possible to precisely control size and shape  of these nanocrystals. The solution-based process  also promises to allow easy doping of the product.   This allows us to examine the influence of shape and   size of the nanocrystals on functional properties of   these materials and to develop new materials with  advantageous properties.  Vanadium Oxide Nanostructures