Structural and optical properties of ZnO nanosaws

Wu, Chun Yi; Hsu, Hsu Cheng; Cheng, Hsin Min; Yang, Song; Hsieh, Wen‐Pin

doi:10.1016/j.jcrysgro.2005.10.065

Cited by 11 publications

(5 citation statements)

References 24 publications

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“…The side-view image in Fig.2 (c)−(e) clearly shows that the nanosaws have rectangular, trapeziform and triquetrous nanoteeth. The teeth have a symmetric distribution at both sides of the nanosaws, which is distinctly different from previously reported asymmetric nanosaws with teeth formed on one of their side surfaces [20,21]. It was found that the deposition temperature played an important role in determining the size and morphology of the nanostructures.…”

Section: (B)contrasting

confidence: 81%

Optical Properties of CdS Nanobelts and Nanosaws Synthesized by Thermal Evaporation Method

Peng

Zou

2012

Chinese Journal of Chemical Physics

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By a simple one-step H 2-assisted thermal evaporation method, high quality CdS nanostructures have been successfully fabricated on Au coated Si substrates in large scale. The as-synthesized CdS nanostructures consisted of sword-like nanobelts and toothed nanosaws with a single-crystal hexagonal wurtzite structure. The deposition temperature played an important role in determining the size and morphology of the CdS nanostructures. A combination of vapor-liquid-solid and vapor-solid growth mechanisms were proposed to interpret the formation of CdS nanostructures. Photoluminescence measurement indicated that the nanobelts and nanosaws have a prominent green emission at about 512 nm, which is the band-to-band emission of CdS. The waveguide characteristics of both types of CdS nanostructures were observed and discussed.

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Section: (B)contrasting

confidence: 81%

Optical Properties of CdS Nanobelts and Nanosaws Synthesized by Thermal Evaporation Method

Peng

Zou

2012

Chinese Journal of Chemical Physics

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“…In recent years, ZnO nanostructures have become one family of the most extensively studied nanomaterials due to their potential applications such as in fabrication of surface acoustic wave devices (SAW), nanogenerator, nano-optoelectronics devices, field-emission devices and UV absorbers [3][4][5][6][7]. A variety of morphologies including polyhedral Cages forms [8], nanopropellers [9], ellipsoidal [10], spheres [11], nanoribbon [12], nanowires [1], whiskers [13] hierarchical pattern [14] and nanosaws [15] have been fabricated through different routes.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Comparative Study of ZnO Nanorods for Structural, Optical and Dielectric Behaviour

Gupta

Sinha

Kumar

2010

Integrated Ferroelectrics

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Flower like & Urchin-like ZnO nanorods were grown along two different growth directions (002) and (100) by a simple low temperature solution technique using NaOH and KOH. The products were characterized with scanning electron microscopy, X-ray powder diffraction, UV-Vis spectrometer and Impedance analyzer. In the temperature variation of dielectric constant a ferroelectric phase transition at 343 K was observed at 1 KHz in ZnO: KOH while no phase transition was observed in ZnO:NaOH. In piezoelectric characterization, the piezoelectric charge coefficient (d 33 ) was measured and slight variations in absorption edge cutoff were found in UV spectra in both the ZnO samples.

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“…Lima and co‐authors [33] thought the emission originated from the intrinsic ZnO 4 group; before the recrystallisation, the structure is a mixture of ZnO x ( x = 3 and 4) intercalated by ZnO 4 clusters, and attributed ZnO green luminescence to the intrinsic ZnO 6 . Hsieh and co‐authors attributed this green emission from ZnO nanosaws to oxygen vacancies [34]. Pal and co‐authors' results show the green emission could be attributed to the radiative recombination of a delocalised electron close to the conduction band with a deeply trapped hole in the V 0 + centre.…”

Section: Resultsmentioning

confidence: 99%

Large‐scale fabrication and the optical properties of tower‐like zinc oxide structures

Zhang

Yin

Yang

et al. 2014

Micro & Nano Letters

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Large-scale uniform ZnO nanotowers on silicon substrate have been prepared by the thermal evaporation method at 950°C using Au as the catalyst. The morphology and microstructure of the as-synthesised ZnO nanotowers were characterised by scanning electron microscopy and X-ray diffraction. The room temperature photoluminescence spectrum of the as-synthesised ZnO nanotowers shows a strong ultraviolet emission peak at 380 nm and a weak green emission at 540 nm, revealing that there are a few deep-level defects in the single ZnO structure. The growth mechanism of the as-synthesised ZnO structures is also discussed.

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Structural and optical properties of ZnO nanosaws

Cited by 11 publications

References 24 publications

Optical Properties of CdS Nanobelts and Nanosaws Synthesized by Thermal Evaporation Method

Optical Properties of CdS Nanobelts and Nanosaws Synthesized by Thermal Evaporation Method

Synthesis and Comparative Study of ZnO Nanorods for Structural, Optical and Dielectric Behaviour

Large‐scale fabrication and the optical properties of tower‐like zinc oxide structures

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