Electronic Resource
[S.l.]
:
American Institute of Physics (AIP)
Journal of Applied Physics
62 (1987), S. 4597-4605
ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
Experiments are presented that demonstrate the possibility of photon energy conversion with a photoelectrochemical insertion reaction. The reaction is performed with the Cu+-conducting semiconductor copper thiophosphate (Cu3PS4; band-gap energy, Eg=2.3 eV) as the photocathode. The Cu3PS4 crystals were grown by chemical vapor transport with halogen as the transport agent. The thermodynamics of the photoinsertion reaction of copper into Cu3PS4 electrodes was investigated, determining a composition-voltage diagram in the dark and under illumination. In photoelectrochemical cells the kinetics of the photoinsertion reaction was studied. Energy-converting photoinsertion cells could be realized with suitable counterelectrodes. The principles of energy-storing photoinsertion cells are discussed together with efficiency limitations and electrode arrangements that may overcome these difficulties.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.339056
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