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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 925Influence of Solution Temperature for...

Influence of Solution Temperature for Hydrothermally Grown Zinc Oxide Nanorods

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Abstract:

Well-aligned arrays of vertically oriented ZnO nanorods were synthesized using hydrothermal method using equal molar concentration of zinc acetate hexahydrate (Zn (CH₃COO)₂.6H₂O) and hexamethylenetetramine (C₆H₁₂N₄) at various deposition temperatures. The resulting nanorods were analyzed by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), photoluminescence (PL), and UV-vis spectrophotometer. XRD and FESEM results indicate that the crystallinity improved for nanorods grown at 85 °C. The preferred growth direction of these nanorods is in (002) direction. However, the nanorods were grown at 55 °C shows poor crystalline characteristics. Typically, these nanorods have grown up to 1000 nm with the diameter range of 25-50 nm. The obtained ZnO nanorods exhibit a weaker UV emission peak located around ~380-390 nm and a relatively stronger yellow-red emission band located at 625 nm to 675 nm.

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Periodical:

Advanced Materials Research (Volume 925)

Pages:

385-389

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.925.385

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Online since:

April 2014

Authors:

Kalyani Nadarajah, Ching Yern Chee*

Keywords:

Deposition Temperature, Hydrothermal Method, Optical Property, Structural

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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