Publicação: Morphological modifications and surface amorphization in ZnO sonochemically treated nanoparticles
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Application of nanoscale materials in photovoltaic and photocatalysis devices and photosensors are dramatically affected by surface morphology of nanoparticles, which plays a fundamental role in the understanding of the physical and chemical properties of nanoscale materials. Zinc oxide nanoparticles with an average size of 20 nm were obtained by the use of a sonochemical technique. X-ray diffraction (XRD) associated to Rietveld refinements and transmission electron microscopy (TEM) were used to study structural and morphological characteristics of the samples. An amorphous shell approximately 10 nm thick was observed in the ultrasonically treated sample, and a large reduction in particle size and changes in the lattice parameters were also observed. © 2012 Elsevier B.V. All rights reserved.
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Amorphous, Electron microscopy, Nanoparticles, Semiconductors, ZnO, Average size, Morphological characteristic, Morphological modification, Nano-scale materials, Photo-sensors, Photovoltaic, Physical and chemical properties, Sonochemical, Surface amorphization, Transmission electron microscopy tem, Zinc oxide nanoparticles, Amorphous materials, Chemical properties, Nanotechnology, Photocatalysis, Rietveld refinement, Semiconductor materials, Transmission electron microscopy, X ray diffraction, Zinc oxide, nanoparticle, zinc oxide, particle size, physical chemistry, priority journal, surface property, transmission electron microscopy, ultrasound
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Inglês
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Ultrasonics Sonochemistry, v. 20, n. 3, p. 799-804, 2013.
