Properties of WO3 layer. (a) Atomic force microscope (AFM) image of solution-processed WO3 layer surface. (b) Comparison of XRD patterns of WO3 NPs synthesized from an aqueous solution of Na2WO4 and monoclinic phase of WO3. (c) Real part (n) and imaginary part (k) of complex refractive index of WO3 layer.
Jeon et al. Nanoscale Research Letters 2012 7:253 doi:10.1186/1556-276X-7-253