Field emission from various CuO nanostructures

Hsieh, Chien‐Te; Chen, Jin‐Ming; Lin, Hung-Hsiao; Shih, Han C.

doi:10.1063/1.1619229

Cited by 333 publications

(160 citation statements)

References 13 publications

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“…The synthesis and application of CuO nanostructures are of practical and fundamental importance. CuO is used in various applications like gas sensors [4], solar energy conversion [5], electrode material in lithium ion batteries [6], as field emitter [7], and as a heterogeneous catalyst [8]. Due to the versatile properties and diverse applications, various kinds of CuO nanostructures and microstructures e.g.…”

Section: Introductionmentioning

confidence: 99%

Efficient catalytic effect of CuO nanostructures on the degradation of organic dyes

Zaman

Zainelabdin

Amin

et al. 2012

Journal of Physics and Chemistry of Solids

111

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An efficient catalytic effect of petals and flowers like CuO nanostructures (NSs) on the degradation of two organic dyes, methylene blue (MB) and rhodamine B (RB) were investigated.The highest degradation of 95% in CuO petals and 72 % in flowers for MB is observed in 24 h.For RB, the degradation was 85 % and 80 % in petals and flowers, respectively for 5 h. It was observed that CuO petals appeared to be more active than flowers for degradation of both dyes associated to high specific surface area. The petals and flower like CuO NSs were synthesized using the chemical bath method at 90 o C. The grown CuO NSs were characterized using scanning electron microscopy (SEM), high resolution transmission electron microscopy (HRTEM), and X-ray diffraction (XRD).

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Section: Introductionmentioning

confidence: 99%

Efficient catalytic effect of CuO nanostructures on the degradation of organic dyes

Zaman

Zainelabdin

Amin

et al. 2012

Journal of Physics and Chemistry of Solids

111

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show abstract

“…Due to such dual semiconducting-magnetic properties, it is considered a relevant material for applications including gas sensors, catalysis, field emitters, electrochemical cells, and magnetic storage media. [11][12][13] In this work, we report on the magnetic properties of single-crystalline CuO nanowires grown by thermal oxidation of Cu. Exchange bias is observed below a blocking temperature of about 19 K. The cooling field and temperature dependences of the EB field ͑H eb ͒, as well as training effects, have been investigated.…”

mentioning

confidence: 99%

Exchange bias in single-crystalline CuO nanowires

Dı́az-Guerra¹,

Vila²,

Piqueras³

2010

Applied Physics Letters

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Exchange anisotropy has been observed and investigated in single-crystalline CuO nanowires grown by thermal oxidation of Cu. The exchange bias field decreases by increasing temperature and can be tuned by the strength of the cooling field. A training effect has also been observed. The obtained results can be understood in terms of a phenomenological core-shell model, where the core of the CuO nanowire shows antiferromagnetic behavior and the surrounding shell behaves as a spin glass-like system due to uncompensated surface spins.

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“…Such features, in fact, could improve the photoemission performances of the cathode by the field emission effect [27][28][29] but the formation of large voids and holes on the film surface limits the application of such a device as a cathode. Further studies will be required in the future to improve the morphology of cathodes based on nanostructured Pb thin film.…”

Section: B Pb Film Deposited On Nb Substratementioning

confidence: 99%

Characterisation of Pb thin films prepared by the nanosecond pulsed laser deposition technique for photocathode application

Lorusso¹,

Gontad²,

Broitman³

et al. 2015

Thin Solid Films

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Pb thin films were prepared by the ns pulsed laser deposition technique on Si (100) and polycrystalline Nb substrates for photocathode application. As the photoemission performances of a cathode are strongly affected by its surface characteristics, the Pb films were grown at different substrate temperatures with the aim of modifying the morphology and structure of thin films. Atomic force microscopy and scanning electron microscopy analyses showed a strong morphological change in the deposited films with the substrate temperature, and the formation of spherical grains at higher temperatures with the nucleation of large voids on the film surface. X-ray diffraction measurements showed that a preferred orientation of Pb (111)

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Field emission from various CuO nanostructures

Cited by 333 publications

References 13 publications

Efficient catalytic effect of CuO nanostructures on the degradation of organic dyes

Efficient catalytic effect of CuO nanostructures on the degradation of organic dyes

Exchange bias in single-crystalline CuO nanowires

Characterisation of Pb thin films prepared by the nanosecond pulsed laser deposition technique for photocathode application

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