Photoelectrochemical cells including chalcogenophosphate photoel

Details Photoelectrochemical cells including chalcogenophosphate photoel Photoelectrochemical cells including chalcogenophosphate photoel

1982-10-07

1984-03-27

Weisstuch, Aaron

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204DIG3, 204DIG4, 204129, 204280, 429111, 423303, C25B 102, H01M 636

Patent

active

044393016

ABSTRACT:
Photoelectrochemical cells employing chalcogenophosphate (MPX.sub.3) photoelectrodes are disclosed, where M is selected from the group of transition metal series of elements beginning with scandium (atomic number 21) through germanium (atomic number 32) yttrium (atomic number 39) through antimony (atomic number 51) and lanthanum (atomic number 57) through polonium (atomic number 84); P is phosphorus; and X is selected from the chalogenide series consisting of sulfur, selenium, and tellurium. These compounds have bandgaps in the desirable range of 2.0 eV to 2.2 eV for the photoelectrolysis of water and are stable when used as photoelectrodes for the same.

REFERENCES:
C. E. Byvik et al., "Photoelectrochemical Response of Some Layered Chalcogenophosphate Compounds (MPX.sub.3)," J. Electrochem. Soc., vol. 129, pp. 237-238, (Jan. 1982).
C. E. Byvik et al., "Layered Transition Metal Thiophosphates as Photoelectrodes in Photoelectrochemical Cells," Solar Energy Mat'ls., vol. 7, pp. 213-213, (Sep./Oct. 1982).

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