Fig. 1From: Tin and Oxygen-Vacancy Co-doping into Hematite Photoanode for Improved Photoelectrochemical PerformancesRepresentative SEM and TEM photos of the synthesized α-Fe2O3 film. a, b The cross-sectional and top-view SEM images of the sample with 0% doping and no-RTP. c The top-view SEM image of the 15% Sn-doped sample. d The top-view image of the 15% Sn-doped hematite with post-RTP. e TEM image of Sn-doped hematite with post-RTP. f STEM image of partial region in e. g HRTEM image of the Sn-doped α-Fe2O3 with post-RTPBack to article page