Synthesis of ZnO nanorods via chemical bath deposition method: The effects of physicochemical factors

Poornajar, Mahshid; Marashi, Pirooz; Haghshenas, Davoud Fatmehsari; Esfahani, Mohammadreza Kolahdouz

doi:10.1016/j.ceramint.2015.08.073

Cited by 80 publications

(37 citation statements)

References 50 publications

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“…Note that the nanorods are dense enough even without the use of any seed layer, and are grown along the c‐axis (002) orientation. A well aligned vertical growth of these nanorods can be possible by using the seed layer of ZnO nanoparticles before the chemical bath deposition, as reported in the literature . However, the observed morphology of ZnO nanorods grown on glass substrates without a seed layer is in close agreement with that observed earlier with a seed layer .…”

Section: Resultssupporting

confidence: 88%

“…Paper nanoparticles before the chemical bath deposition, as reported in the literature [30,61,62]. However, the observed morphology of ZnO nanorods grown on glass substrates without a seed layer is in close agreement with that observed earlier with a seed layer [60].…”

Section: Originalsupporting

confidence: 90%

“…There are several studies presenting the effects of pertinent factors for achieving the favorable conditions of the synthesis process, to achieve a uniform growth of ZnO nanostructures, especially, nanorods. The major factors studied to date are; substrates, seed layer thickness, temperature, concentration of precursors and most importantly, the role of the stabilizing agent [30][31][32][33][34][35][36][37][38][39]. Shi and Walker reported recently that stirring produces smoother but less reproducible ZnO films than sonication-assisted CBD [40].…”

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confidence: 99%

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Nanocrystalline and monophasic thin films of metal chalcogenide (FeS, ZnS) and oxide (ZnO) by chemical bath deposition (CBD)

Akhtar

Mehmood

Ahmad

et al. 2017

Phys. Status Solidi A

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FeS, ZnS, and ZnO nanostructured thin films have been deposited by Chemical Bath Deposition (CBD), a simple and cost effective technique. These materials with different morphologies such as nano‐flakes, nanoparticles and nanorods for FeS, ZnS, and ZnO, respectively were deposited onto the glass substrates. The crystallite sizes have been estimated from Scherrer's equation and were found to be 14 nm for nano‐flakes of FeS, 9.09 nm for nanoparticles of ZnS, and 49 nm for nanorods of ZnO. The average values of the band gaps were found to be 1.97, 3.43, and 3.74 eV for FeS, ZnO, and ZnS thin films, respectively. These nanostructured semiconducting materials have wide applications in advanced optoelectronic devices.

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Section: Resultssupporting

confidence: 88%

Section: Originalsupporting

confidence: 90%

mentioning

confidence: 99%

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Nanocrystalline and monophasic thin films of metal chalcogenide (FeS, ZnS) and oxide (ZnO) by chemical bath deposition (CBD)

Akhtar

Mehmood

Ahmad

et al. 2017

Phys. Status Solidi A

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“…The addition of a dopant affects the density of the seed layer, and by changing its concentration, the resulting diameter or length of the NRs can also be controlled. A similar method can be applied with the addition of polyethyleneimine (PEI) chemical to the seed layer solution and/or NR growth solution (Huang et al, 2011;Poornajar et al, 2016). Another method to control the seed layer is to change the concentration of the seed layer solution (Pourshaban et al, 2015) or to increase the length of the growth process (Kurda et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Morphological and Structural Study of Vertically Aligned Zinc Oxide Nanorods Grown on Spin Coated Seed Layers

Bramantyo

Murakami

Okuya

et al. 2019

IJTech

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In this study, vertically aligned zinc oxide (ZnO) nanorod (NR) arrays were grown with the 2step method. Spin coating was used to apply the seed layer, and by increasing the number of repetitions (n), higher thickness of the seed layer was achieved. The effects of different seed layer thicknesses, spin coated at different rotational speeds (v) and how the variables (v and n) influence the morphological and crystal properties of the resulting ZnO NRs were analyzed. The effects of 1, 3, and 5 (n), with (v) of 3000 or 4000 rpm were investigated, and the formed seed layers were characterized by using scanning electron microscopy (SEM) and X-ray diffraction (XRD) profiles. The ZnO NR arrays were grown by a chemical bath deposition method because of its simplicity and ease of use. Full width at half maximum (FWHM) analysis was conducted on the XRD chart and Raman spectrum to analyze the grain size and Wurtzite distortion of the ZnO NRs. A lower FWHM value was attributed to the lower number of structural disorders in the ZnO NRs, which equated to the most stable or structured Wurtzite structures in the ZnO NRs, achieved at the lowest FWHM value. The lowest FWHM for (002) XRD peak was obtained at 0.35° for ZnO NRs grown with a seed layer spin coated at 4000 rpm once. The crystallite size calculated by Scherrer's equation gave a size of 25.14 nm. The lowest FWHM for E2(High) Raman peak was obtained at 6.00 cm-1 for ZnO NRs grown with a seed layer spin coated at 4000 rpm three times.

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“…Effects of deposition time on structural and morphological properties of ZnO nanoflowers have been investigated by X-ray diffraction (XRD) method and Field Emission Scanning Electron Microscope (FESEM). In studies with chemical bath deposition technique, ZnO nanoflowers deposition takes several hours and annealing is required for crystallization (Taunk et al, 2015;Poornajar et al, 2016;Shaikh et al, 2016). Also complexing agents are used in chemical bath solution as a stabilizer.…”

Section: Introductionmentioning

confidence: 99%

Effects of Deposition Time on Structural and Morphological Properties of Synthesized ZnO Nanoflowers Without Using Complexing Agent

Temel

Gökmen

Yaman

2017

ESJ

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ZnO nanoflowers have been synthesized by chemical bath deposition technique at different deposition times without using complexing agent, so it is an environmentalist study. Effects of deposition time on structural and morphological properties of ZnO nanoflowers have been investigated by Xray diffraction (XRD) method and Field Emission Scanning Electron Microscope (FESEM). XRD patterns showed that the samples had hexagonal wurtzite structure and polycrystalline nature. Grain sizes, dislocation densities and lattice parameters of the samples have been calculated. According to these results, it has been determined that the ZnO nanoflowers synthesized in very short time like 30 minutes without using complexing agent, showed the best crystallization. When the images of ZnO nanoflowers have been examined, it has seen that the structure is formed continuously and independently from each other by nanorods. It has also seen that these nanorods combine to form a flower-like structure.

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Synthesis of ZnO nanorods via chemical bath deposition method: The effects of physicochemical factors

Cited by 80 publications

References 50 publications

Nanocrystalline and monophasic thin films of metal chalcogenide (FeS, ZnS) and oxide (ZnO) by chemical bath deposition (CBD)

Nanocrystalline and monophasic thin films of metal chalcogenide (FeS, ZnS) and oxide (ZnO) by chemical bath deposition (CBD)

Morphological and Structural Study of Vertically Aligned Zinc Oxide Nanorods Grown on Spin Coated Seed Layers

Effects of Deposition Time on Structural and Morphological Properties of Synthesized ZnO Nanoflowers Without Using Complexing Agent

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