Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

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)
DOI:https://doi.org/10.1063/1.91921· OSTI ID:5356473
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