论文部分内容阅读
Polycrystalline iron oxide electrodes made by thermal decomposition of Fe (C_8H_(15)O_2)_3[Iron (Ⅲ) 2-ethylhexanoate] on Fe, Ti and Pt substrates were characterized with respectto their dielectric and photoelectrochemical properties. The thermal decomposition process pro-duces a stable ferric oxide lattice (Fe_2O_3) possessing n-type semiconductor characteristics. Thephotoelectrochemical behavior of painted electrodes was shown to be equivalent to iron oxideproduced by thermal or anodic oxidation. From A. C. impedance measurements, an equivalentcircuit of the interface was constructed, that provided values for the space charge capacitanceand resistance. With the equivalent circuit, impedance measurements can be used to ascertainrapidly the relative photo-efficiencies of photoanodes.
The thermal decomposition process of Fe (C_8H_ (15) O_2) _3 [Iron (Ⅲ) 2-ethylhexanoate] on Fe, Ti and Pt substrates were characterized with respect to their dielectric and photoelectrochemical properties. Thephotoelectrochemical behavior of painted electrodes was shown to be equivalent to iron oxideproduced by thermal or anodic oxidation. From AC impedance measurements, an equivalent circuit of the interface was constructed, that provided values for the space charge capacitance and resistance. With the equivalent circuit, impedance measurements can be used to ascertainrapidly the relative photo-efficiencies of photoanodes.