Thin film growth and Zn doping of h-MoO3 hexagonal rods by hydrothermal technique

Abstract

In this research, rod-like undoped and Zn doped h-MoO3 thin films were grown on top of MoO3 seed layers, using hydrothermal technique without adding any surfactant. Seed layers of MoO3 were coated on top of glass substrates using spray pyrolysis technique. Structural, morphological and optical properties of thin films were examined. XRD pattern analysis showed that the seed layer has orthorhombic crystal structure. Also, it confirms the formation of hexagonal structure for thin films grown by hydrothermal. FESEM images show the formation of long, well-shaped hexagonal rod-likes. UV-Vis spectroscopy reveals band gap increasing from 3.2 eV to 3.54 eV, by increasing Zn.