A photocatalyst of sulphur depleted monolayered molybdenum sulfide nanocrystals for dye degradation and hydrogen evolution reaction

For applications of photo-chemical (e.g. photocatalysis) and photo-physical processes (e.g. solar cell), Mo-S monolayers are promising but the efficiencies are low. With careful experimental and theoretical studies, we show how such efficiency (e.g. for hydrogen evolution reaction) can be significantly improved through tailoring their electronic structure (e.g. band structure, defect levels and suppressed photon recombination) by size reduction and sulphur depletion.296