Controllable vertically aligned ZnO nanorods on flexible polyethylene naphthalate (PEN) substrate using chemical bath deposition synthesis

Shabannia, R.; Hassan, H. Abu

doi:10.1007/s00339-013-7619-1

Cited by 28 publications

(12 citation statements)

References 25 publications

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“…The behavior aspect ratio variation in the absence of air bubbles is in good agreement with the previous studies [31,34,41]. From Figure 3c, we noticed that the higher aspect ratio is corresponding to the precursor concentration of 0.05 M. The ZnO NRs grown with higher aspect ratio created well-aligned ZnO NRs [37,38,54]. The obtained aspect ratios of ZnO NRs were 11 and 25 for conventional and modified CBD methods, respectively.…”

Section: Morphology Characteristicssupporting

confidence: 90%

“…Shabannia and Abu Hassan reported that the precursor concentration has a significant impact on the diameter, length, shape, orientation, density, structure and optical properties of ZnO NRs. The well-aligned hexagonal ZnO NRs were found at 50-mM precursor concentration and had small average diameter ranged from 10 nm to 40 nm as well as sharpest and most intense UV peaks [37]. Chee et al studied the effect of the different precursor concentrations on the morphology, structure and optical properties of ZnO NRs grown on FTO substrate by using the CBD method.…”

Section: Introductionmentioning

confidence: 99%

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Enhancement of ZnO Nanorods Properties Using Modified Chemical Bath Deposition Method: Effect of Precursor Concentration

Abdulrahman

Ahmed

et al. 2020

Crystals

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In this study, the effects of different precursor concentrations on the growth and characteristics properties of the zinc oxide (ZnO) nanorods (NRs) synthesized by using modified and conventional chemical bath deposition (CBD) methods were investigated. The morphologic, structural and optical properties of synthesized ZnO NRs with different precursor concentrations were studied using various characterization techniques. The experimental results show that the varying precursor concentration of the reactants has a remarkable and significant effect on the growth and characteristics properties of ZnO NRs. In addition, the characteristic properties of ZnO NRs grown using the modified method showed significantly improved and enhanced properties. The average length of grown ZnO NRs increased with increased precursor concentration; it can be seen that longer ZnO NRs have been investigated using the modified CBD methods. The ZnO NRs synthesized at 0.05 M using the modified method were grown with high aspect ratios than the ZnO NRs grown using conventional means which were 25 and 11, respectively. The growth rate increased with increased precursor concentration; it can be observed that a higher growth rate was seen using the modification CBD method. Furthermore, XRD results for the two cases reveal that the grown ZnO samples were a nanorod-like in shape and possessed a hexagonal wurtzite structure with high crystal quality. No other phases from the impurity were observed. The diffraction peaks along (002) plane became higher, sharper and narrower as precursor concentration increased, suggesting that the crystalline quality of ZnO NRs grown using the modified method was more enhanced and better than conventional methods. However, optical studies show that the transmittance at each concentration was more than two times higher than the transmittance using the modified CBD method. In addition, optical studies demonstrated that the ZnO NRs grown by using modified and conventional methods had a direct Eg in the range of (3.2–3.26) eV and (3.15–3.19) eV, respectively. It was demonstrated in two methods that ZnO NRs grown at a precursor concentration 0.05 M gave the most favorable result, since the NRs had best characteristic properties.

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Section: Morphology Characteristicssupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Enhancement of ZnO Nanorods Properties Using Modified Chemical Bath Deposition Method: Effect of Precursor Concentration

Abdulrahman

Ahmed

et al. 2020

Crystals

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“…The high violet emission is centred approximately at 413 nm that can be attributed to the transition energy from zinc interstitial level to the valance band in ZnO. The high indigo emission is centred approximately at 425 nm that can be attributed to the transition energy from conduction band to zinc vacancy level [26, 27]. The blue emissions are centred approximately at 437 and 454 nm are attributed to the recombination between zinc interstitial energy level to zinc vacancy energy level.…”

Section: Resultsmentioning

confidence: 99%

Fabrication and characterisation of flower‐like ZnO nanostructures grown chemically on flexible PEN substrate

Shabannia

2016

Micro & Nano Letters

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Flower-like ZnO nanostructures were successfully produced on a polyethylene naphthalate (PEN) substrate through a chemical bath deposition method. Field emission scanning electron microscopy (FESEM), X-ray diffraction (XRD), photoluminescence (PL), and ultraviolet-visible were utilised to investigate the structural and optical properties of grown flower-like ZnO nanostructures. FESEM image indicates that fabricated ZnO nanostructures formed from the ZnO nanoflowers with different shape and the petals of the ZnO nanoflower grow symmetrically and radially from the centre. XRD pattern of the ZnO nanoflowers indicate that the ZnO nanorods of the nanoflowers were preferentially grown along the c-axis. The PL results of the ZnO nanoflowers exhibited a strong violet and indigo emission peaks are centred approximately at 413 and 425 nm, respectively.

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“…Te on FEP appears to be very structurally comparable to Polytetra uoroethylene (PTFE) which is a well-known polymer with remarkable mechanical strength and electrical properties, low impact resistance and thermal stability, as well as other attributes including low surface energy and chemical stability, and is a cost-effective material (Galante 2010). The outstanding mechanical and physicochemical properties of PTFE served as a framework for the addition of ZnO nanotubes (Shabannia 2014), and enabled for the e cient creation of exible sensors (Agrawal 2017). The possibility of developing nanoscale photodetectors for nano-optics applications were exhibited for ZnO nanotubes, which were successfully produced using a wet simple preparation method on such Te on substrate (Farhat 2015).…”

Section: Introductionmentioning

confidence: 99%

Electronic and physical studies for Teflon FEP as a thermal control in low earth orbit reinforced with ZnO and SiO2 nanoparticles

et al. 2021

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Fluorinated Ethylene Propylene (Teflon FEP) is used as external layer thermal insulator for Hubble Space Telescope (HST) and on the outside surfaces of space crafts in the low earth orbit (LEO). Te on FEP was eroding as a result of exposure to Atomic Oxygen (AO) and different electromagnetic waves such as Ultraviolet radiation and X-ray. Model molecules were used to simulate Teflon FEP and its interaction with other nanoparticles such as ZnO and SiO 2 . Density functional theory (DFT) was used to calculate model structures using B3LYP/LAN2DZ model. Molecular Electrostatic Potential as contour, band gap energy and total dipole moment were computed for all models. Thermal stability properties were also studied for Teflon FEP both individually and interacted with ZnO and SiO 2 . Results showed that a layer of OZn and SiO 2 on Te on FEP, especially Te on FEP+OZn+OSiO structure, improves the physical, chemical, thermal, and electrical stability of Te on FEP, potentially acting as a corrosion-inhibiting layer.

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Controllable vertically aligned ZnO nanorods on flexible polyethylene naphthalate (PEN) substrate using chemical bath deposition synthesis

Cited by 28 publications

References 25 publications

Enhancement of ZnO Nanorods Properties Using Modified Chemical Bath Deposition Method: Effect of Precursor Concentration

Enhancement of ZnO Nanorods Properties Using Modified Chemical Bath Deposition Method: Effect of Precursor Concentration

Fabrication and characterisation of flower‐like ZnO nanostructures grown chemically on flexible PEN substrate

Electronic and physical studies for Teflon FEP as a thermal control in low earth orbit reinforced with ZnO and SiO2 nanoparticles

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