Array of vertically aligned Al-doped ZnO nanorods: Fabrication process and field emission performance

advand, marziyeh; Kolahdouz, Mohammadreza; Rostami, Amir; Masnadi-Shirazi, Mostafa; Norouzi, Maryam; Karami, Amir Hossein; Hajiabdolrahim, Nima

doi:10.1016/j.tsf.2018.04.008

Cited by 10 publications

(4 citation statements)

References 25 publications

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“…As shown in Figure a, under the photocatalytic effect of Al‐ZnO NR, Al‐ZnO NT, and Al‐ZnO/Cu 2 O NT samples, the MO concentration underwent a time‐dependent decrease, in which the Al‐ZnO/Cu 2 O NT samples exhibited significant photocatalytic activity. In Figure b, the time dependence in ln( C 0 / C ) terms, as transformed from Figure a, is illustrated for all samples, according to pseudo‐first‐order reaction kinetics

\ln (C_{0} \times C^{- 1}) = k t

…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, ZnO materials with various morphologies have also been widely studied, and among them, nanotube (NT) structures were found to be more attractive than others. Meanwhile, many different techniques have been studied to synthesize structural ZnO materials, including the sol–gel method, hydrothermal synthesis, thermal decomposition, etc. In these techniques, a hydrothermal method could be applied at low temperatures that avoids the possibility of cracking; hence, it is the conventional method for the preparation of structural ZnO materials .…”

Section: Introductionmentioning

confidence: 99%

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The Photocatalytic Properties of Al‐doped ZnO Nanotubes Decorated with Cu₂O Nanoparticles

Wang

et al. 2019

Physica Status Solidi (a)

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Al‐doped ZnO nanotubes (NTs) decorated with Cu2O particles (Al‐ZnO/Cu2O NTs) are prepared by a two‐step hydrothermal method, and the photocatalytic properties are examined by the degradation of methyl orange (MO) solution under simulated solar light at room temperature. Compared with the Al‐doped ZnO nanorods (Al‐ZnO NRs) and the Al‐doped ZnO NTs (Al‐ZnO NTs), the Al‐ZnO/Cu2O NTs exhibit better photocatalytic properties. The improvement of photocatalytic performance of Al‐ZnO/Cu2O NTs is attributed to both Cu2O particle decoration and NT structures. In the samples, the decoration of Cu2O particles can prolong the exciton lifetimes, and the NT structures increase specific area. Therefore, both of these two conditions contribute to improved photocatalytic efficiency.

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\ln (C_{0} \times C^{- 1}) = k t

…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The Photocatalytic Properties of Al‐doped ZnO Nanotubes Decorated with Cu₂O Nanoparticles

Wang

et al. 2019

Physica Status Solidi (a)

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“…Our previous work on in-situ doping of Al revealed challenges in increasing the doping percentage whereby the maximum reported limit of doping concentrations was between 0.67 % [17] and 1.72 % [29]. In addition, a number of challenges that arise when employing the in-situ method of doping, include a significant distortion along the growth direction (c-axis) [30], decreased deposition rate [31] and slower growth rate [32].…”

Section: Introductionmentioning

confidence: 99%

Random lasing behaviour in Al-doped ZnO nanorods

et al. 2023

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“…However, a reliable p-type doping of the material remains a major challenge. Meanwhile, in the doping studies for ZnO, unique photophysical properties that appeared in the doped ZnO nanosystems may find its priority application in the field of biosensing [25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Nanohybrids that consisit of p-type, nitrogen-doped ZnO and graphene nanostructures: synthesis, photophysical properties, and biosensing application

Chen¹,

Zheng²,

Zheng³

et al. 2022

Nanotechnology

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ZnO, a promising material for optoelectronic applications, has attracted considerable attention due to its wide and direct band gap and large exciton binding energy. To understand the applications of this material, fabrication of high quality p-type ZnO is a key step. However, a reliable p-type doping of this material remains a major challenge. In this study, we report p-type nitrogen-doped ZnO nanoparticle, grown in a nitrogen doped graphene layer matrix by a plasma heating process using a natural protein and zinc nitrate as the precursors. The structural characterizations are developed by several microscopic techniques including the field emission electron microscopy (FE-SEM), high resolution transmission electron microscopy (HR-TEM), X-ray photoelectron spectroscopy (XPS), and micro-Raman analysis. In addition, the ultraviolet (UV)-visible absorption characteristics and photoluminescence properties of the samples are studied. Its p-type conduction behaviour is confirmed by the Hall effect measurement, which was ascribed to the high nitrogen dopant concentration in the Zn-poor ZnO, and the related mechanism for the p-type behaviour is also discussed. Moreover, the results of the glucose detection based on the strong green luminescence of glucose indicate that the nitrogen-doped ZnO nanodots/nitrogen-doped graphene layer nanohybrid is also a competitive candidate in the biosensing field.

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Array of vertically aligned Al-doped ZnO nanorods: Fabrication process and field emission performance

Cited by 10 publications

References 25 publications

The Photocatalytic Properties of Al‐doped ZnO Nanotubes Decorated with Cu₂O Nanoparticles

The Photocatalytic Properties of Al‐doped ZnO Nanotubes Decorated with Cu₂O Nanoparticles

Random lasing behaviour in Al-doped ZnO nanorods

Nanohybrids that consisit of p-type, nitrogen-doped ZnO and graphene nanostructures: synthesis, photophysical properties, and biosensing application

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Array of vertically aligned Al-doped ZnO nanorods: Fabrication process and field emission performance

Cited by 10 publications

References 25 publications

The Photocatalytic Properties of Al‐doped ZnO Nanotubes Decorated with Cu2O Nanoparticles

The Photocatalytic Properties of Al‐doped ZnO Nanotubes Decorated with Cu2O Nanoparticles

Random lasing behaviour in Al-doped ZnO nanorods

Nanohybrids that consisit of p-type, nitrogen-doped ZnO and graphene nanostructures: synthesis, photophysical properties, and biosensing application

Contact Info

Product

Resources

About

The Photocatalytic Properties of Al‐doped ZnO Nanotubes Decorated with Cu₂O Nanoparticles

The Photocatalytic Properties of Al‐doped ZnO Nanotubes Decorated with Cu₂O Nanoparticles