Description Dataset for synchrotron-based x-ray photoelectron (XPS) spectra of Li doped MoS2 nanofilms grown on c-plane sapphire substrate by two techniques: thermally assisted conversion (TAC) and pulsed laser deposition (PLD). Reference spectra for undoped MoS2 were measured on a commercial MoS2 powder sample. Data formats The XPS datasets are available in two formats. VAMAS (ASCII ISO 14976). Plain text column files: Double-column files (dat) and corresponding metadata files (txt).

Sample preparation MoS2 nanofilms were synthesized using two techniques: Thermally assisted conversion (TAC) of 1-nm-thick Mo by one-zone sulfurization. Pulsed laser deposition (PLD). Lithium was incorporated into the as-prepared MoS2 films by solid-state diffusion during the subsequent sulfurization process, where a part of sulfur powder was replaced by lithium sulfide (Li2S) as a source of Li.

Data were acquired at BACH beamline, Elettra synchrotron facility. Access was provided by IOM-CNR in Trieste (Italy) within the framework of the NFFA-Europe Pilot Transnational Access Activity, proposal ID101.