Group-10 transition metal dichalcogenides (TMDs) are rising in prominence within the highly
innovative field of 2D materials. While PtS
2 has been investigated for potential electronic
applications, due to its high charge-carrier mobility and strong layer-dependent bandgap, it
has proven to be one of the more difficult TMDs to synthesise. In contrast to most TMDs, Pt
has a significantly more stable monosulfide, the non-layered PtS. The existence of two stable
platinum sulfides, sometimes within the same sample, has resulted in much confusion
between the materials in the literature. Neither of these Pt sulfides have been thoroughly
characterised as-of-yet. Here we utilise time-efficient, scalable methods to synthesise highquality thin films of both Pt sulfides on a variety of substrates. The competing nature of the
sulfides and limited thermal stability of these materials is demonstrated. We report peakfitted X-ray photoelectron spectra, and Raman spectra using a variety of laser wavelengths, for
both materials. This systematic characterisation provides a guide to differentiate between the
sulfides using relatively simple methods which is essential to enable future work on these
interesting materials
«Group-10 transition metal dichalcogenides (TMDs) are rising in prominence within the highly
innovative field of 2D materials. While PtS
2 has been investigated for potential electronic
applications, due to its high charge-carrier mobility and strong layer-dependent bandgap, it
has proven to be one of the more difficult TMDs to synthesise. In contrast to most TMDs, Pt
has a significantly more stable monosulfide, the non-layered PtS. The existence of two stable
platinum sulfides, sometime...
»