Raman scattering and photoluminescence of Fe-doped ZnO nanocantilever arrays

Zhang, Bin; Zhou, Shu; Wang, Haiwei; Du, Zongliang

doi:10.1007/s11434-008-0247-z

Cited by 41 publications

(7 citation statements)

References 28 publications

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“…When Fe is doped into ZnO nanostructure the Fe 3+ ions substitute the Zn 2+ ions. It may be considered that Fe 3+ ions cause the reduction of the lattice parameters due to the smaller ionic radius which is already proved by some authors [30][31][32]. XRD patterns also exhibit that as the Fe content increases, the intensity of XRD peaks decreases and FWHM increases which shows the degradation of crystallinity and decrease in crystallite size.…”

Section: Resultsmentioning

confidence: 72%

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Structural and frequency dependent dielectric properties of Fe3+ doped ZnO nanoparticles

Hassan

Ahmed

Chaman

et al. 2012

Materials Research Bulletin

140

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Section: Resultsmentioning

confidence: 72%

“…There are various papers reported on the structural, optical, magnetic and gas sensing properties of Fe doped ZnO [28][29][30][31][32][33] Polycrystalline Fe doped ZnO nanoparticles were synthesized through citrate gel method. Microstructural studies were carried out using XRD, FESEM, EDS, TEM, SAED and FTIR spectroscopy.…”

Section: Introductionmentioning

confidence: 99%

Structural and frequency dependent dielectric properties of Fe3+ doped ZnO nanoparticles

Hassan

Ahmed

Chaman

et al. 2012

Materials Research Bulletin

140

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“…Continuous feeding of an evaporated [(Zn + little Ni 2+ ) or Zn] source and elemental oxygen would lead to form wire-/rod-like array (hierarchical) nanostructure (mainly from eutectoid of ZnNiO or ZnO). The more detailed growth mechanism was reported in our earlier papers [2-4,6]. …”

Section: Resultsmentioning

confidence: 93%

“…Samples of un/Ni-doped ZnO NCs were synthesized on Si substrates in a horizontal tube furnace system, which is similar to our earlier reports [2-4,6]. In a typical process, a solution of nickel nitrate (nominal rate: 0, 0.1, or 0.2 M) and ethanol was dropped onto the Si substrate.…”

Section: Methodsmentioning

confidence: 94%

Magnetic Properties of Ni-doped ZnO Nanocombs by CVD Approach

et al. 2010

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The search for above room temperature ferromagnetism in dilute magnetic semiconductors has been intense in recent year. Arrays of perpendicular ferromagnetic nanowire/rods have recently attracted considerable interest for their potential use in many areas of advanced nanotechnology. We report a simple low-temperature chemical vapor deposition (CVD) to create self-assembled comb-like Ni-/undoped ZnO nanostructure arrays. The phases, compositions, and physical properties of the studied samples were analyzed by different techniques, including high-resolution X-ray diffraction/photoelectron spectroscopy/transmission electron microscopy, photoluminescence, and MPMS. In particular, the Ni-doped ZnO nanocombs (NCs) with ferromagnetic and superparamagnetic properties have been observed whereas undoped ZnO NCs disappear. The corresponding ferromagnetic source mechanism is discussed, in which defects such as O vacancies would play an important role.

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“…Cusco et al [20] and Yang et al [21] have studied the temperature dependent Raman spectral measurements of pure and TM doped ZnO nanoparticles. Bin et al [22] have observed Fe related additional mode at 644 cm −1 , but could not observe Fe related Local Vibrational Modes (LVM). There are only a few reports available in the literature on the identification of dopant related vibrational modes in ZnO nanoparticles through FTIR measurements.…”

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confidence: 90%

Role of Fe doping on structural and vibrational properties of ZnO nanostructures

2012

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In this report, Raman and Fourier Transform Infrared (FTIR) measurements were carried out to study the phonon modes of pure and Fe doped ZnO nanoparticles. The nanoparticles were prepared by sol-gel technique at room temperature. The X-ray diffraction measurements reveal that the nanoparticles are in hexagonal wurtzite structure and doping makes the shrinkage of the lattice parameters, whereas there is no alteration in the unit cell. Raman measurements show both E low 2 and E High 2 optical phonon mode is shifted towards lower wave number with Fe incorporation and explained on the basis of force constant variation, stress measurements, respectively. In addition, Fe related local vibrational modes (LVM) were observed for higher concentration of Fe doping. FTIR spectra reveal a band at 444 cm −1 which is specific to E 1 (TO) mode; a redshift of this mode in Fe doped samples and some surface phonon modes were observed. Furthermore, the observation of additional IR modes, which is considered to have an origin related to Fe dopant in the ZnO nanostructures, is also reported. These additional mode features can be regarded as an indicator for the incorporation of Fe ions into the lattice position of the ZnO nanostructures.

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Raman scattering and photoluminescence of Fe-doped ZnO nanocantilever arrays

Cited by 41 publications

References 28 publications

Structural and frequency dependent dielectric properties of Fe3+ doped ZnO nanoparticles

Structural and frequency dependent dielectric properties of Fe3+ doped ZnO nanoparticles

Magnetic Properties of Ni-doped ZnO Nanocombs by CVD Approach

Role of Fe doping on structural and vibrational properties of ZnO nanostructures

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