Cd/sub 2/SnO/sub 4/, CdIn/sub 2/O/sub 4/, and Cd/sub 2/GeO/sub 4/ as anodes for the photoelectrolysis of water
Journal Article
·
· Appl. Phys. Lett.; (United States)
From their photoelectrolysis spectra we have determined the lowest band gaps of Cd/sub 2/SnO/sub 4/, CdIn/sub 2/O/sub 4/, and Cd/sub 2/GeO/sub 4/ to be 2.12 (indirect), 2.23 (forbidden), and 3.15 eV (indirect), respectively; their flat-band potentials are +0.18, +0.25, and -0.82 V (SCE), respectively. This combination of band gaps and flat-band potentials, and the observed long-term instability of Cd/sub 2/SnO/sub 4/, makes these materials unsuitable as electrodes in solar photoelectrolysis cells.
- Research Organization:
- Department of Physics, Brock University, St. Catharines, Ontario, L2S 3A1 Canada
- OSTI ID:
- 5356473
- Journal Information:
- Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 37:3; ISSN APPLA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
14 SOLAR ENERGY
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
ANODES
CADMIUM COMPOUNDS
CADMIUM STANNATES
DATA
DIRECT ENERGY CONVERTERS
ELECTRIC POTENTIAL
ELECTROCHEMICAL CELLS
ELECTRODES
ELECTROLYTIC CELLS
ENERGY GAP
EQUIPMENT
GERMANATES
GERMANIUM COMPOUNDS
HYDROGEN COMPOUNDS
INDIUM COMPOUNDS
INFORMATION
INSTABILITY
OXYGEN COMPOUNDS
PHOTOELECTRIC CELLS
PHOTOELECTROCHEMICAL CELLS
PHOTOELECTROLYTIC CELLS
PHOTOVOLTAIC CELLS
SOLAR CELLS
SOLAR EQUIPMENT
SPECTRA
STANNATES
TIN COMPOUNDS
WATER
140501* -- Solar Energy Conversion-- Photovoltaic Conversion
ANODES
CADMIUM COMPOUNDS
CADMIUM STANNATES
DATA
DIRECT ENERGY CONVERTERS
ELECTRIC POTENTIAL
ELECTROCHEMICAL CELLS
ELECTRODES
ELECTROLYTIC CELLS
ENERGY GAP
EQUIPMENT
GERMANATES
GERMANIUM COMPOUNDS
HYDROGEN COMPOUNDS
INDIUM COMPOUNDS
INFORMATION
INSTABILITY
OXYGEN COMPOUNDS
PHOTOELECTRIC CELLS
PHOTOELECTROCHEMICAL CELLS
PHOTOELECTROLYTIC CELLS
PHOTOVOLTAIC CELLS
SOLAR CELLS
SOLAR EQUIPMENT
SPECTRA
STANNATES
TIN COMPOUNDS
WATER