Anzeige
Erschienen in:
01.06.2013
Aqueous based synthesis of Cu5Se4 nanosheets and characterization
Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 6/2013
EinloggenAktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.
Wählen Sie Textabschnitte aus um mit Künstlicher Intelligenz passenden Patente zu finden. powered by
Markieren Sie Textabschnitte, um KI-gestützt weitere passende Inhalte zu finden. powered by
Abstract
Cu5Se4 nanosheets were synthesized by simple chemical reaction between copper ions and elemental selenium in presence of a strong base. XRD and Raman spectroscopy was used to ascertain the crystal structure and the characteristic bonding between copper and selenium. FE-SEM and HR-TEM analysis clearly shows the formation of nanosheets and the thickness of the sheets is ~2.5 nm. An effort has been made to explain the growth mechanism of formed Cu5Se4 nanosheets using periodic bond chain theory. EDAX analysis confirms the purity of the synthesized sample. XPS study shows the presence of mixed valencies of both copper and selenium. Diffused reflectance spectrum of the Cu5Se4 nanosheets was carried out to estimate the band gap and found to be 1.2 eV. Electrochemical behaviour of the Cu5Se4 nanosheets was studied in different background electrolytes and in various pH.