Growth mechanism of ZnO nanorods from nanoparticles formed in a laser ablation plume

Hartanto, Agung Budi; Ning, Xi-Jing; Nakata, Yoshiki; Okada, Tatsuo

doi:10.1007/s00339-003-2286-2

Cited by 148 publications

(64 citation statements)

References 8 publications

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“…Zeonor substrates by PLD. authors [39][40][41][42] and also in the laser ablation of silicon [43]. The underlying physical mechanisms have been explained for ZnO in the works of Okada and Kawashima [39] and…”

Section: Thickness Measurements and Growth Rate Studiesmentioning

confidence: 99%

Highly transparent and reproducible nanocrystalline ZnO and AZO thin films grown by room temperature pulsed-laser deposition on flexible Zeonor plastic substrates

Inguva

Vijayaraghavan

McGlynn

et al. 2015

Mater. Res. Express

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Films also displayed high transmission greater than 95 % in some cases, in the 400 -800 nm wavelength range. The low temperature photoluminescence spectra of all the ZnO and AZO films showed intense near band edge emission. A considerable spread from semi-insulating to ntype conductive was observed for the films, with resistivity ~10 3 Ω cm and Hall mobility in 4 -14 cm 2 /V-s range, showing marked dependences on film thickness and oxygen pressure.Applications in the fields of microfluidic devices and flexible electronics for these ZnO and AZO films are suggested.3

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Section: Thickness Measurements and Growth Rate Studiesmentioning

confidence: 99%

Highly transparent and reproducible nanocrystalline ZnO and AZO thin films grown by room temperature pulsed-laser deposition on flexible Zeonor plastic substrates

Inguva

Vijayaraghavan

McGlynn

et al. 2015

Mater. Res. Express

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“…Several physical and chemical methods like molecularbeam epitaxy [1], chemical vapor deposition [5], sputtering [6] have been successfully applied for ZnO film synthesis. The technique of nanosecond [2,3,4,7,8,9] and femtosecond [10] pulsed laser ablation (PLA) has been also widely used to produce both epitaxial and nanostructured ZnO films of high optical quality. The synthesis of nanocrystalline films is usually performed in an ambient gas whose pressure should be high enough, firstly, to confine the plasma created after laser ablation in order to favor the collisions and chemical reactions in the laser induced plume and, secondly, to induce a rapid cooling of the plasma to favor the condensation of the nanoclusters in gas phase [11].…”

Section: Introductionmentioning

confidence: 99%

“…Recently, we have observed small nanoclusters with composition Zn n O m (with n, m up to 15) by timeof-flight mass-spectrometry [14] in vacuum and in gas at low pressures. The formation of these atomic clusters in laser induced plasma can be considered as the first step in the synthesis of clusters with sizes of several nanometers which are usually deposited on a substrate individually or in form of a thin film [8,9,11]. Despite of numerous reports on laser deposition of nanostructured films, few data are available on the origin of the nanoclusters and on their aggregate state during the transport to the * Electronic address: ozerov@crmcn.univ-mrs.fr † Electronic address: marine@crmcn.univ-mrs.fr substrate.…”

Section: Introductionmentioning

confidence: 99%

Production of gas phase zinc oxide nanoclusters by pulsed laser ablation

Ozerov

Bulgakov

Nelson

et al. 2005

Applied Surface Science

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We present experimental results on the photoluminescence (PL) of gas-suspended zinc oxide nanoclusters prepared during ablation of sintered ZnO targets by a pulsed ArF laser in the presence of oxygen ambient gas. The PL spectra in the UV spectral region correspond to the exciton recombination in the nanoclusters which are crystallized and cooled down to the temperature of the ambient gas in the ablation chamber. The time evolution of the spectra as well as their dependence on the ambient gas pressure are discussed.

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“…[1][2][3][4][5] Laser induced modifications of the target surface during PLD have been invoked as possible reasons for the appearance of defects in the final deposits. At the ablation wavelength of 193 nm ͑Ref.…”

Section: Introductionmentioning

confidence: 99%

Laser induced effects on ZnO targets upon ablation at 266 and 308nm wavelengths

Jadraque

Domingo

Martı́n

2008

Journal of Applied Physics

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The development of structural changes in ZnO targets, upon laser irradiation at the wavelengths of 266 and 308 nm, is studied by Raman spectroscopy. At the wavelength of 308 nm, oxygen vacancies are found to develop monotonically with increasing laser intensity. At 266 nm, a structural change in the irradiated ZnO targets, possibly related to nanostructuring, is observed above the laser fluence of 0.45 J cm −2 . The different natures of the laser target interaction processes taking place at both wavelengths are investigated through the characterization of the composition and energy distribution of the species ejected in the ablation. The energy of the neutral Zn and Zn 2 present in the ablation at 308 nm shows a smooth dependence on laser fluence which is consistent with the observed smooth development of oxygen vacancies. At 266 nm, the average kinetic energy of the ejected fragments is higher than at 308 nm and changes abruptly with the ablating laser fluence, consistently with the presence of a fluence threshold above which structural transform is observed at this wavelength. The plume shows the same neutral composition ͑Zn, ZnO, and Zn 2 ͒ at both wavelengths but the dependence on fluence of the ratio of neutral atomic Zn to the dimer Zn 2 shows significant differences. From the latter, different temperature regimes can be inferred in the plume generated at both wavelengths. At 266 nm the cationic composition of the plume is mainly stoichiometric whereas at 308 nm ZnO 2͑3͒ H 2͑1͒ + cations have the highest intensity.

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Growth mechanism of ZnO nanorods from nanoparticles formed in a laser ablation plume

Cited by 148 publications

References 8 publications

Highly transparent and reproducible nanocrystalline ZnO and AZO thin films grown by room temperature pulsed-laser deposition on flexible Zeonor plastic substrates

Highly transparent and reproducible nanocrystalline ZnO and AZO thin films grown by room temperature pulsed-laser deposition on flexible Zeonor plastic substrates

Production of gas phase zinc oxide nanoclusters by pulsed laser ablation

Laser induced effects on ZnO targets upon ablation at 266 and 308nm wavelengths

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