Au nanoparticle-modified MoS₂ nanosheet-based photoelectrochemical cells for water splitting

In the last decade, molybdenum disulphide (MoS₂), one of the most well-known two-dimensional (2D) layered transition- metal chalcogenides (TMDs), has received considerable attention due to its unique mechanical, electronic and optical properties as well as its various applications. ^[1] In particular, single- or few-layer MoS₂ nanosheets have been widely used for homogeneous bio-probes, ^[2] phototransistors, ^[3] field-effect transistors, ^[4] gas sensors, ^[4b,5] memory devices, ^[6] electro-catalysts, ^[7] templates for epitaxial growth of noble metal nanostructures, ^[8] and other applications.