Abstract
The pristine manganese selenide (MnSe) thin film was successfully prepared from the bulk materials synthesized using the melt quench process employing the vacuum evaporation approach as the initial step in the scenarios of this study. A steady increase in temperature relative to the pristine sample (at RT) was used to evaluate the tunability of the structural, optical, and electrical characteristics of the pristine and annealed films at different temperatures (323–373 K). The pristine thin film was amorphous, but the annealed films were crystalline, according to X-ray and SEM measurements. On the optical side, this research is unique in that it extracts two energies in Tauc and Urbach regions. These energy were explained using the atomic orbital splitting concept. Finally, the electrical properties were determined using the capacitance and conductance pathways.
•Additional energies within (Tauc, Urbach) ranges were noticed and confirmed.•Extracting the optical band energy in more than one method was done.•The present work was discussed the linear optical properties.•The dispersion parameters were computed in two energy regions.•The main structural and electrical parameters were determined.