ChemistrySelect · 2018 · 20 citations · 40 references
Natural SciencesMaterials EngineeringMaterials ScienceMaterials ChemistryNanomaterialsNanotechnologyInorganic NanoparticlesMetal Oxide NanomaterialsMetal OxidesPhotocatalysisPhotoelectrochemistryX-ray Photoelectron SpectroscopyAnnealingAnnealing Temperature EffectsMetal Oxide Nanoparticles SynthesisOptical PropertiesPhotoelectrochemical Water SplittingPhotoluminescencePhotoluminescence SpectroscopySonochemical Synthesis
Abstract Zinc oxide (ZnO) nanoparticles were prepared by a green process using a simple sonochemical method. The prepared nanoparticles were annealed at different annealing temperatures in order to determine the role of the annealing temperature on the structural, morphological and optical properties of the prepared material. The defects related photoluminescence properties of the ZnO nanoparticles are discussed in detail. X‐ray photoelectron spectroscopy provided the information regarding the presence of the defects in the material. ZnO emission related to defect emission was observed to increase with annealing temperature upto 600°C and then decreased. These defects played a crucial role in the performance of the photo‐electrochemical (PEC) activity. The PEC performance has increased with an increase in the amount of oxygen related defects present in the material due to annealing.
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Complex and oriented ZnO nanostructures
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