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- W2057241858 abstract "Abstract Several techniques have been used in order to characterize the photoelectronic properties of a magnetoplumbite single crystal of composition Pb1.19Fe11.88O18.91. Measurements of electrical resistivity and thermoelectric power have shown between 77 and 300 K the compound to have n-type semiconducting properties. The I–V characteristics (in the dark and under illumination), the spectral response and the flat band potential have also been determined. The density of donors derived from Mott-Schottky plots (3.2 × 1019) is in good agreement with the value of the Fe2+ concentration (2.9 × 1019) obtained by chemical analysis. Electron affinity was found to be equal to 4.5 ± 0.2 eV. The photocurrent corresponding to the photoelectrolysis of water is due to indirect electronic transitions at 1.75, 2.1 and 2.4 eV. Evidence is given suggesting that these transitions correspond to lead-iron and/or iron-iron charge transfers." @default.
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- W2057241858 date "1983-01-01" @default.
- W2057241858 modified "2023-10-16" @default.
- W2057241858 title "A photoelectrochemical study of the hexagonal ferrite PbFe12O19" @default.
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- W2057241858 doi "https://doi.org/10.1016/0022-3697(83)90095-1" @default.
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