fig8
![A novel structure Ti/Fe<sub>2</sub>O<sub>3</sub>/Cu<sub>2</sub>S/Co(OH)<sub>x</sub> enhances the photoelectrochemical water splitting performance of iron oxide](https://image.oaes.cc/7beb1c46-18bf-45fd-92f9-d78ee9316ee2/cs3068.fig.8.jpg)
Figure 8. Mott-Schottky plots have frequencies from 500 to 2,000 Hz. (A) Ti/Fe2O3 photoanode; (B) Ti/Fe2O3/Cu2S photoanode; (C) Ti/Fe2O3/Co(OH)x photoanode; (D) Ti/Fe2O3/Cu2S/Co(OH)x photoanode; (E) Frequency (500 to 1,500 Hz) of the Mott-Schottky diagram of Cu2S nanoparticles; (F) The carrier concentrations of Ti/Fe2O3 photoanode (TF), Ti/Fe2O3/Cu2S photoanode (TFCu), Ti/Fe2O3/Co(OH)x photoanode (TFCo), and Ti/Fe2O3/Cu2S/Co(OH)x photoanode (TFCuCo).