Pannan I. Kyesmen , Nteseng D.M. Mosalakgotla , Adedapo O. Adeola , Peverga R. Jubu , Philip Omolaye , I. Ahemen , Mmantsae Diale
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引用次数: 0
Abstract
Here, thin films of porous Mn-α-Fe2O3/CuO/Ag were prepared; engaging solely low-cost solution-based methods. The dip-coating of CuO on electrodeposited Mn-α-Fe2O3 samples using a 180-day-old Cu-based precursor produced films with inhomogeneous morphology and shallow surface pores. This morphology provided the platform for the drop-casting of Ag nanoparticles on the film's surface to form porous Mn-α-Fe2O3/CuO/Ag heterostructures. EDS, XRD, and Raman spectroscopy studies affirmed the film's structural integrity. The bandgap estimated for the Mn-α-Fe2O3/CuO/Ag samples was 3.8 % less than the values deduced for Mn-α-Fe2O3 films. Mott-Schottky analysis disclosed n-type semiconducting behaviour for the Mn-α-Fe2O3 films, which was retained after forming heterostructures with CuO and CuO/Ag. The charge transfer resistance at Mn-α-Fe2O3/CuO/Ag film's surface in an electrochemical system was 27 times lower than the approximate values obtained for Mn-α-Fe2O3 samples. This research introduces a facile and low-cost approach for fabricating porous Mn-α-Fe2O3/CuO/Ag heterostructures with improved properties for photo-base and optoelectronic applications.
期刊介绍:
Physica B: Condensed Matter comprises all condensed matter and material physics that involve theoretical, computational and experimental work.
Papers should contain further developments and a proper discussion on the physics of experimental or theoretical results in one of the following areas:
-Magnetism
-Materials physics
-Nanostructures and nanomaterials
-Optics and optical materials
-Quantum materials
-Semiconductors
-Strongly correlated systems
-Superconductivity
-Surfaces and interfaces