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Tailoring morphology to control defect structures in ZnO electrodes for high-performance supercapacitor devices

Najib, Sumaiyah; Bakan, Feray; Abdullayeva, Nazrin; Bahariqushchi, Rahim; Kasap, Sibel; Franzo, Giorgia; Sankir, Mehmet; Sankir, Nurdan Demirci; Mirabella, Salvo; Erdem, Emre


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  <dc:creator>Najib, Sumaiyah</dc:creator>
  <dc:creator>Bakan, Feray</dc:creator>
  <dc:creator>Abdullayeva, Nazrin</dc:creator>
  <dc:creator>Bahariqushchi, Rahim</dc:creator>
  <dc:creator>Kasap, Sibel</dc:creator>
  <dc:creator>Franzo, Giorgia</dc:creator>
  <dc:creator>Sankir, Mehmet</dc:creator>
  <dc:creator>Sankir, Nurdan Demirci</dc:creator>
  <dc:creator>Mirabella, Salvo</dc:creator>
  <dc:creator>Erdem, Emre</dc:creator>
  <dc:date>2020-01-01</dc:date>
  <dc:description>Zinc oxide (ZnO) nanostructures were synthesized in the form of nanoparticles, nanoflowers and nanourchins. Structural, electronic and optical characterization of the samples was performedviastandard techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), photoluminescence, Raman and ultraviolet-visible (UV-Vis) spectroscopy. Point defect structures which are specific to each morphology have been investigated in terms of their concentration and locationviastate-of-the-art electron paramagnetic resonance (EPR) spectroscopy. According to the core-shell model, all the samples revealed core defects; however, the defects on the surface are smeared out. Finally, all three morphologies have been tested as electrode materials in a real supercapacitor device and the performance of the device, in particular, the specific capacitance and the storage mechanism, has been mediated by the point defects. Morphology-dependent defective ZnO electrodes enable the monitoring of the working principle of the supercapacitor device ranging from electric double-layer capacitors (EDLC) to pseudo-supercapacitors.</dc:description>
  <dc:identifier>https://aperta.ulakbim.gov.trrecord/7011</dc:identifier>
  <dc:identifier>oai:zenodo.org:7011</dc:identifier>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>http://www.opendefinition.org/licenses/cc-by</dc:rights>
  <dc:source>NANOSCALE 12(30) 16162-16172</dc:source>
  <dc:title>Tailoring morphology to control defect structures in ZnO electrodes for high-performance supercapacitor devices</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
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