Experimental and Theoretical NANOTECHNOLOGY

About the Journal :

Experimental and Theoretical NANOTECHNOLOGY (ETN) abbreviated as Exp. Theo. NANOTECHNOLOGY is a multidisciplinary peer-reviewed and open access journal. It includes specialized research papers, short communications, reviews and selected conference papers in special issues on the characterization, synthesis, processing, structure and properties of different principles and applications of nanotechnology with focus on advantageous achievements and applications for the specialists in engineering, chemistry, physics, materials science and medicine. ETN covers and publishes all aspects of fundamental and applied researches of experimental and theoretical nanoscale technology dealing with materials synthesis, processing, nanofabrication, nanoprobes, spectroscopy, properties, biological systems, nanostructures, nanoelectronics, nano-optics, nano-mechanics, nanodevices, nanobiotechnology, nanomedicine, nanotoxicology within the scope of the journal. ETN aims to acquire the recent and outstanding researches for the benefit of the human being.


Synthesis of flower-shapedZnO nanostructures composed of hexagonal ZnO nanorods was achieved by the solution process using zinc acetate dihydrate and sodium hydroxide at very low temperature of 90 8C in 30 min. The individual nanorods are of hexagonalshapewithsharptip,andbasediameterofabout300–350nm.Detailedstructuralcharacterizationsdemonstratethatthe synthesizedproductsaresinglecrystallinewiththewurtzitehexagonalphase,grownalongthe[0001]direction.TheIRspectrum showsthestandardpeakofzincoxideat523cm-1.RamanscatteringexhibitsasharpandstrongE2modeat437cm-1which furtherconfirmsthegoodcrystallinityandwurtzitehexagonalphaseofthegrownnanostructures.Thephotoelectronspectroscopic measurementshowsthepresenceofZn,O,C,zincacetateandNa.Thebindingenergyca.1021.2 eV(Zn2p3/2)and1044.3eV(Zn 2p1/2), are found very close to the standard bulk ZnO binding energy values. The O 1s peak is found centered at 531.4 eV with a shoulder at 529.8 eV. Room-temperature photoluminescence (PL) demonstrate a strong and dominated peak at 381 nm with a suppressedandbroadgreenemissionat515nm,suggeststhattheflower-shapedZnOnanostructureshavegoodopticalproperties with very less structuraldefects.

Keywords:Synthesis; Characterization; ZnO.