FESEM images of TiO2 nanoparticle thin film on FTO glass fabricated by doctor blading method. (a, b) The top-view images of the as-deposited and the compressed film, respectively. (c) The cross-sectional image. The insets in (a) and (b) are high-magnification images.
Tsai et al. Nanoscale Research Letters 2013 8:459 doi:10.1186/1556-276X-8-459