Structural and magnetic properties of CuO nanoneedles synthesized by hydrothermal method

Dar, Mushtaq Ahmad; Kim, Y.S.; Kim, W.B.; Sohn, Jung Min; Shin, Hyung‐Shik

doi:10.1016/j.apsusc.2008.06.004

Cited by 199 publications

(92 citation statements)

References 37 publications

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“…For the properties of semiconductors depending on their size, shape and crystalline structure, the control of the shape and size of the semiconductors has become more important. Recently, much effort has been devoted to synthesizing unique CuO nanostructures, such as rods (Xu et al 2002), robbons (Liu and Zeng 2004;Gao et al 2009), wires (Su et al 2007), belts (Zhang et al 2008b), sheets (Zheng et al 2007), platelets (Zarate et al 2007), needles (Dar et al 2008), and tubes (Cho and Huh 2008). As one of the novel structures, flower-like CuO was expected to offer some exciting opportunities for some potential applications on electrochemistry (Pan et al 2007), sensors (Teng et al 2008), catalysis (Vaseem et al 2008), and field emission (Yu et al 2008).…”

Section: Introductionmentioning

confidence: 99%

“…Copper oxide (CuO) is a narrow band gap (E = 1⋅2 eV) p-type semiconductor and has received considerable attention due to its potential applications in many fields, such as solar cells (Musa et al 1998), magnetic storage media (Dar et al 2008), superconductors (MacDonald 2001), lithium batteries (Morales et al 2005), heterogeneous catalysts (Chen et al 2008), and so on. For the properties of semiconductors depending on their size, shape and crystalline structure, the control of the shape and size of the semiconductors has become more important.…”

Section: Introductionmentioning

confidence: 99%

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Flower-like CuO synthesized by CTAB-assisted hydrothermal method

Zou

Zhang

et al. 2011

Bull Mater Sci

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Flower-like CuO nanostructures have been synthesized by cetyltrimethylammonium bromide (CTAB)-assisted hydrothermal method. Here, CuCl 2 ⋅2H 2 O was used as copper raw material, and sodium hydroxide was used as precipitate. The resulting CuO powders were characterized by X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM). X-ray diffraction (XRD) pattern exhibited the nanocrystalline nature with monoclinic structure for the as-synthesized nanostructures. FESEM images indicated that the flower-like CuO nanostructures are composed of many interconnected nanosheets in size of several micrometres in length and width and 60-80 nm in thickness. The possible formation mechanism of flower-like CuO nanostructures was discussed.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Flower-like CuO synthesized by CTAB-assisted hydrothermal method

Zou

Zhang

et al. 2011

Bull Mater Sci

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“…Such restrictions animated research on hydrothermal solution phase synthesis, which has advantages such as low temperature, versatile synthetic process, great potential for scale up, low-energy requirements, and safe and environmentally benign synthetic conditions. Moreover, diverse and multifarious CuO nanostructures integrated by various solution synthetic techniques have potential use in novel devices [14].…”

Section: Introductionmentioning

confidence: 99%

Versatile synthesis of rectangular shaped nanobat-like CuO nanostructures by hydrothermal method; structural properties and growth mechanism

Dar

Ahsanulhaq

Kim

et al. 2009

Applied Surface Science

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172

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“…Some of the nanostructures of CuO that has been synthesized include nanorods, [ [15,16], nanowires [17], nanobelts, nanosheets [18], nanoplatelets [19] nanoneedles [20].…”

Section: Introductionmentioning

confidence: 99%

Annealing effect on the optical and solid state properties of cupric oxide thin films deposited using the Aqueous Chemical Growth (ACG) method

Mammah¹,

Opara²,

Omubo-Pepple³

et al. 2013

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Thin films of CuO having an average thickness of 720 nm were deposited on clean glass substrates using the Aqueous Chemical Growth (ACG) method with Cu(NO 3 ) 2 and C 6 H 12 N 4 as precursors and annealed at different temperatures in order to determine the effect of annealing temperature on their optical and solid state properties. The study was carried out using Rutherford Backscattering (RBS) spectroscopy for t thickness and chemical composition, X-Ray Diffraction (XRD) for crystallographic structure and a UV-VIS spectrophotometer for spectral analysis. The results indicate that the absorbance and absorption/extinction coefficient of the films vary inversely with annealing temperature while the transmittance, reflectance, direct band gap, real/imaginary dielectric constants and refractive index vary directly with annealing temperature. The results further indicate an improvement in crystallinity as annealing temperature increases. The as-deposited and annealed ACG CuO thin films were found to be suitable for use as window layer in solar cells among other electronic and optoelectronic applications.

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Structural and magnetic properties of CuO nanoneedles synthesized by hydrothermal method

Cited by 199 publications

References 37 publications

Flower-like CuO synthesized by CTAB-assisted hydrothermal method

Flower-like CuO synthesized by CTAB-assisted hydrothermal method

Versatile synthesis of rectangular shaped nanobat-like CuO nanostructures by hydrothermal method; structural properties and growth mechanism

Annealing effect on the optical and solid state properties of cupric oxide thin films deposited using the Aqueous Chemical Growth (ACG) method

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