Tungsten Disulfide and Diselenide - why I think they are cool, and you should too!
Passivation of recombination centers in n-WSe2 yields high efficiency (>14%) photoelectrochemical cell.
Tenne R. (1985) Appl. Phys. Lett..Electrochemical characterization of p-type semiconducting tungsten disulfide photocathodes: efficient photoreduction processes at semiconductor/liquid electrolyte interfaces.
Baglio Joseph A. (1983) J. Am. Chem. Soc..