Synthesis, structural, optical and thermal analysis of nanostructured ZnO
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Muniappan Elango
Abstract
Nanostructured zinc oxide (ZnO) has been synthesized via a one step solution based wet chemical method. Zinc acetate dihydrate (Zn (CH3COO)2 · 2H2O) was used as the precursor and its growth conditions were optimized for the formation of nanostructured ZnO. The powder pattern X-ray diffraction data of synthesized ZnO confirm particles of radius of about 20 nm with wurtzite hexagonal phase and preferential growth along (101) plane. Transmission electron microscopic results support the particle size value obtained through X-ray diffraction study. Clusters of nanostructured ZnO in agglomerated form are observed in scanning electron micrographs. The absorption bands observed at 509 cm−1 and 406 cm−1 in infrared spectra are assigned to ∊M-O of the synthesized compound. The absorption spectrum shows a narrow peak near the band edge in the exciton absorption region at about 371 nm and a blue shift is observed with respect to the bulk exciton absorption, 375 nm. Thermo-gravimetric analysis indicates weight loss corresponding to the formation of ZnO. The mechanism for the growth of nanostructured ZnO in solution has also been discussed.
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© 2013, Carl Hanser Verlag, München
Artikel in diesem Heft
- Contents
- Contents
- Original Contributions
- The thermodynamics of boron extraction from liquid silicon using SiO2–CaO–MgO slag treatment
- Viscosity estimation of semi-solid alloys based on thermal simulation compression tests
- Original Contributions
- Experimental study of phase equilibria in the “SnO”–CaO–SiO2 system in equilibrium with tin metal
- Prediction of the solidification path of Al-4.37Cu-27.02Mg ternary eutectic alloy with a unified microsegregation model coupled with Thermo-Calc
- Evaluation of the effective diffusion coefficient of boron in the Fe2B phase in the presence of chemical stresses
- Morphology evolution of γ′ precipitates in GTD-111 Ni-based superalloy with heat treatment parameters
- Hot forming of a new steel used in stamping dies and tooling
- Mechanical properties and corrosion behaviour of freestanding, precipitate-free magnesium WE43 thin films
- Sliding wear performance of Fe-, Ni- and Co-based hardfacing alloys for PTA cladding
- The suitability of selected austenitic stainless steels and hastelloy C276 alloys as substrates for thin film deposition using spray pyrolysis
- Synthesis, structural, optical and thermal analysis of nanostructured ZnO
- Electrical conductivity variation of (Bi2Te3)0.25(Sb2Te3)0.75 crystal grown using the zone melting method
- X-ray Absorption Near Edge Structure Studies of Pb1-xMnxTe(In, Ga) Systems
- DGM News
- DGM News
- Grain refining of aluminium alloys and silicon by means of boron-nitride particles
Artikel in diesem Heft
- Contents
- Contents
- Original Contributions
- The thermodynamics of boron extraction from liquid silicon using SiO2–CaO–MgO slag treatment
- Viscosity estimation of semi-solid alloys based on thermal simulation compression tests
- Original Contributions
- Experimental study of phase equilibria in the “SnO”–CaO–SiO2 system in equilibrium with tin metal
- Prediction of the solidification path of Al-4.37Cu-27.02Mg ternary eutectic alloy with a unified microsegregation model coupled with Thermo-Calc
- Evaluation of the effective diffusion coefficient of boron in the Fe2B phase in the presence of chemical stresses
- Morphology evolution of γ′ precipitates in GTD-111 Ni-based superalloy with heat treatment parameters
- Hot forming of a new steel used in stamping dies and tooling
- Mechanical properties and corrosion behaviour of freestanding, precipitate-free magnesium WE43 thin films
- Sliding wear performance of Fe-, Ni- and Co-based hardfacing alloys for PTA cladding
- The suitability of selected austenitic stainless steels and hastelloy C276 alloys as substrates for thin film deposition using spray pyrolysis
- Synthesis, structural, optical and thermal analysis of nanostructured ZnO
- Electrical conductivity variation of (Bi2Te3)0.25(Sb2Te3)0.75 crystal grown using the zone melting method
- X-ray Absorption Near Edge Structure Studies of Pb1-xMnxTe(In, Ga) Systems
- DGM News
- DGM News
- Grain refining of aluminium alloys and silicon by means of boron-nitride particles
