Optoelectronic and thermoelectric properties in Ga doped β- PbS2 nanostructured thin films

► An initiating study on the effect of Ga doping on the optoelectronic and thermoelectric properties of β-PbS2 thin films. ► The films were characterized by XRD, XPS, SEM, AFM. ► Higher bandgap observed for Ga doped β-PbS2 film compared to β-PbS2 film. ► Thermopower measurements yielded EF value and the scattering mechanisms in the film.