Preparation of mn-doped zno by hydrothermal method

Abstract Room temperature ferromagnetic ZnO thin magnetic semiconductor material can solve the problems of large electronic component volume and low integration density in traditional semiconductors. In this paper, direct and precipitation methods were used for the hydrothermal synthesis of Zn 1-x Mn x O (x = 0.05) crystals. The hydrothermal reaction conditions were 1 mol/L KOH or NaOH as mineralizers, and the reaction time was 24 hours at 180 °C. XRD measured the phase in the crystal and confirmed that Mn ions can be doped in ZnO, but the doping amount is limited. SEM displays the morphology of crystals, and the morphology of doped crystals synthesized under different processes varies. NaOH is more suitable as a mineralizer for Mn-doped ZnO than KOH. The powder distribution obtained by the direct precipitation method is more uniform and the dispersion is better than that obtained by a direct method, indicating that the direct precipitation method is more suitable as a precursor preparation method for Mn-doped ZnO.