Studies on structural and electrical properties of MnO films prepared by the spray pyrolysis method

Abstract

MnO film samples of various thicknesses were prepared by the spray pyrolysis technique via the atomization of MnCl 2 aqueous solutions onto glass substrates held at 350 • C using compressed air as a carrier gas. The crystal structure of the MnO films that was determined by x-ray diffraction was found to be polycrystalline. The crystalline structure of all the film samples showed a preferred orientation along the c-axis perpendicular to the substrate. The electrical parameters of the samples were obtained by applying the dc four-probe technique to rectangular-shaped samples. The effect of temperature on the electrical properties of MnO films is described here.

Vertically-aligned graphene@MnO nanosheets as binder-free high-performance electrochemical pseudocapacitor electrodes

“…MnO shares the same drawbacks as MnO 2 : poor conductivity (10 À8 to 10 À4 S cm À1 for MnO 5 ) and inferior long-term cycling stability. Conventionally, the method used to tackle this problem is depositing nanosized manganese oxides on conductive substrates such as CNT 6 and nanoporous gold, 7 or mixing with carbon materials such as graphite or acetylene black.…”

Investigation of the Characteristics of the Boron Doped MnO Films Deposited by Spray Pyrolysis Method

“…MnO and boron doped MnO films can be prepared by different techniques such as radiofrequency sputtering [5], solvothermal synthesis [6], hydrothermal method [7], molecular beam epitaxy [8], thermal vacuum evaporation [9], successive ionic layer adsorption and reaction (SILAR) [10], chemical bath deposition (CBD) [11], and spray pyrolysis [12,13]. Manganese oxide (MnO) is a transitional material having interesting physical and chemical properties.…”