Elsevier

Solar Energy Materials

Volume 6, Issue 3, March–April 1982, Pages 337-350
Solar Energy Materials

Further studies of the photoelectrochemical properties of the group VI transition metal dichalcogenides

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Abstract

The photoelectrochemical behavior of synthetic crystals of WS2, MoS2 and crystals with mixed metal and chalcogen composition was studied and compared with the behavior of MoSe2 and WSe2. The composition and stoichiometry of the crystals and the composition of the electrolyte are varied and the behavior of the materials in a regenerative liquid junction solar cell is measured and analyzed. The quantum yields as a function of wavelength and photon flux are investigated and sunlight to electricity conversion efficiencies are measured. The formation of iodine layers on the photoelectrode surface under high illumination intensity was observed and discussed with respect to the use of these materials with solar concentrators.

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