Preparation, structural and optical characterization of ZnO, ZnO: Al nanopowder

Journal Article · Tue Jan 28 00:00:00 EST 2014 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4861996· OSTI ID:22263996

Mohan, R. Raj ^[1]; Rajendran, K. ^[2]; Sambath, K. ^[3]

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1. Department of ECE, Gojan School of Business and Technology, Chennai (India)
2. Department of Electronics, Government Arts College for Women, Ramanathapuram, TN (India)
3. Department of ECS, Sri Krishna Arts and Science College, Coimbatore, TN (India)

In this paper, ZnO and ZnO:Al nanopowders have been synthesized by low cost hydrothermal method. Zinc nitrate, hexamethylenetetramine (HMT) and aluminium nitrate are used as precursors for ZnO and AZO with different molar ratios. The structural and optical characterization of doped and un-doped ZnO powders have been investigated by X-ray diffraction (XRD), Scanning electron microscopy (SEM), Energy dispersive X-ray spectroscopy (EDAX), photoluminescence (PL) and ultra violet visible (UV-Vis) absorption studies. The SEM results show that the hydrothermal synthesis can be used to obtain nanoparticles with different morphology. It is observed that the grain size of the AZO nanoparticles increased with increasing of Al concentration. The PL measurement of AZO shows that broad range of green emission around 550nm with high intensity. The green emission resulted mainly because of intrinsic defects.

• OSTI ID: 22263996
• Journal Information: AIP Conference Proceedings, Vol. 1576, Issue 1; Conference: OMTAT 2013: 2. international conference on optoelectronic materials and thin films for advanced technology, Kochi, Kerala (India), 3-5 Jan 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
77 NANOSCIENCE AND NANOTECHNOLOGY
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ABSORPTION
ALUMINIUM NITRATES
DOPED MATERIALS
GRAIN SIZE
HYDROTHERMAL SYNTHESIS
NANOSTRUCTURES
PARTICLES
PHOTOLUMINESCENCE
POWDERS
SCANNING ELECTRON MICROSCOPY
UROTROPIN
X-RAY DIFFRACTION
X-RAY SPECTROSCOPY
ZINC NITRATES
ZINC OXIDES