Photoactivity of polycrystalline. cap alpha. -Fe/sub 2/O/sub 3/ electrodes doped with group IVA elements

Journal Article · Sun Nov 01 04:00:00 EST 1981 · J. Electrochem. Soc.; (United States)

DOI:https://doi.org/10.1149/1.2127253· OSTI ID:6085354

Kennedy, J H; Anderman, M; Shinar, R

Success in obtaining significant photocurrents with polycrystalline, SiO/sub 2/-doped ..cap alpha..-Fe/sub 2/O/sub 3/ photoanodes gave rise to a study of the photoelectrochemical properties of other group IVA elements as dopants. Recently, photochemical properties of SnO/sub 2/- and CaO-doped ..cap alpha..-Fe/sub 2/O/sub 3/ electrodes were investigated elsewhere but only 1 and 5% doping levels were studied. In the present work ..cap alpha..-Fe/sub 2/O/sub 3/ material was mixed with 0.002-5 at.% GeO/sub 2/ and SnO/sub 2/ and with 0.01-5 at.% (initial composition) PbO/sub 2/. Emission spectroscopy and x-ray diffraction were used to check the initial and final doping levels and for the possible presence of two-phase materials. Photoelectrochemical results were compared to those obtained at Si(IV)- and TI(IV)-doped ..cap alpha..-Fe/sub 2/O/sub 3/ electrodes.

• Research Organization: Univ. of California, Santa Barbara
• OSTI ID: 6085354
• Journal Information: J. Electrochem. Soc.; (United States), Journal Name: J. Electrochem. Soc.; (United States) Vol. 128:11; ISSN JESOA
• Country of Publication: United States
• Language: English

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ALKALINE EARTH METAL COMPOUNDS
ANODES
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DOPED MATERIALS
ELECTROCHEMICAL CELLS
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SILICON COMPOUNDS
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