Morphology controlled synthesis of Al doped ZnO nanosheets on Al alloy substrate by low-temperature solution growth method

Gaddam, Venkateswarlu; Kumar, Rajeev; Parmar, Mitesh; Yaddanapudi, Krishna; Nayak, M. M.; Rajanna, K.

doi:10.1039/c4ra14049d

Cited by 46 publications

(42 citation statements)

References 33 publications

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“…Auger parameter of Zn value (2009.61 eV) is in close agreement with the previously reported ZnO nanostructures, which confirms the formation of ZnO[48,13].Fig. 7 (c) displays the XPS spectra of O 1s region of ZnO nanorods.…”

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confidence: 88%

“…Further, the ZnO -coated substrates were taken out and thoroughly cleaned with DI water for removing the organic salts and these were allowed to dry at room temperature [3,13,29,40].…”

Section: Synthesis Of Zno Nanorods On Phynox Alloy Substratementioning

confidence: 99%

“…The growth of ZnO nanorods were observed at low temperature range of 60-90 °C for the growth duration of 4 hours. Moreover, this process is relatively simple, cost effective, less hazardous and also most suitable for the uniform ZnO nanorods synthesis over larger surface area [3,13,29].The wetting behaviour (hydrophobic/hydrophilic) analysis was studied by water contactangle (WCA) measurements. The as-grown ZnO nanorods were observed to be relatively vertical to the substrate.…”

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confidence: 99%

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Synthesis of ZnO nanorods on a flexible Phynox alloy substrate: influence of growth temperature on their properties

et al. 2015

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A novel flexible alloy substrate (Phynox, 50 µm thick) is used for the synthesis of Zinc Oxide (ZnO) nanorods by low-temperature solution growth method. The growth of ZnO nanorods were observed at low temperature range of 60-90 °C for the growth duration of 4 hours. As-synthesized nanorods were characterized by field-emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS) for their morphology, crystallanity, microstructure and composition. The as-grown ZnO nanorods were observed to be relatively vertical to the substrate. However, the morphology of ZnO nanorods in terms of their length, diameter and aspect ratio is found to vary with the growth temperatures. The morphological variations are mainly due to the effects of varied relative growth rates with growth temperature. The growth temperature influenced ZnO nanorods are also used for analyzing their wetting (either hydrophobic or hydrophilic) property. After carrying out multiple wetting behaviour analysis, it has been found that the as-synthesized ZnO nanorods are hydrophobic in nature. These ZnO nanorods have the potential application possibilities in self cleaning devices, sensors & actuators as well as energy harvesters like nanogenerators.Zinc Oxide (ZnO) is one of the most promising potential materials due to its remarkable properties such as wide band-gap (3.37eV), large exciton binding energy (60 meV), excellent chemical & thermal stability, transparency and biocompatibility. Due to the possible utilization of the above mentioned properties in various fields like electronics, optoelectronics, electrochemical and electromechanical, the ZnO has become more popular and drawing increasing interest in the area of nanotechnology [1][2][3][4]. ZnO is very flexible functional material exhibiting wide structural morphologies, such as nanocombs [5], nanorings [6], nanohelixes/nanosprings [7], nanobelts [8], nanowires/nanorods [9, 10], nanotubes [11], nanocages [12] and nanosheets [13]. Among these, one dimensional (1D) ZnO nanorords/nanowires have been extensively studied in the recent past due to their multifunctional device applications in the areas of ultraviolet (UV) lasers [14-15], light emitting diodes [16], field emission devices [17-18], solar cells [19-20], surface acoustic wave devices [21], piezoelectric sensors & actuators [22-23] and nanogenerators [2-3,24]. The 1D ZnO nanorods can be synthesized by various methods such as physical vapour deposition (PVD) [8], chemical vapour deposition (CVD) [25], metalorganic chemical vapour deposition (MOCVD) [26], molecular beam epitaxy (MBE) [27], pulsed laser deposition (PLD) [28], hydrothermal synthesis [3,24,29]and electrochemical deposition [30]. Among all these methods, solution growth assisted hydrothermal synthesis is most favourable due to its flexibility to carry out the synthesis process on variety of substrates (both conducting and non-conducting) at low temperatures (<100°C). Moreover, this process is ...

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confidence: 88%

“…Further, the ZnO -coated substrates were taken out and thoroughly cleaned with DI water for removing the organic salts and these were allowed to dry at room temperature [3,13,29,40].…”

Section: Synthesis Of Zno Nanorods On Phynox Alloy Substratementioning

confidence: 99%

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Synthesis of ZnO nanorods on a flexible Phynox alloy substrate: influence of growth temperature on their properties

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“…3 (g)). 38 And this indicates that the surface is mainly composed on hydroxide compounds which are corresponding to the Zn-Al LDH component. On the other hand, the ZnO NR grown on an , the counter anion in the ZnAl-LDH.…”

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confidence: 99%

“…5(a), the O 1s peaks from the samples with a ZnO layer thickness of 6 and 15 nm were deconvoluted into two peaks centered at 529.9and 531.4 eV, which are corresponding to the low and middle binding energy components, respectively 38. As shown in Fig.…”

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Morphology controlled growth of ZnAl-layered double hydroxide and ZnO nanorod hybrid nanostructures by solution method

2015

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Advances in Doped ZnO Nanostructures for Gas Sensor

Wang

Gong

et al. 2020

The Chemical Record

117

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Gas sensors based on metal oxides semiconductor (MOS) have attracted extensive attention from both academic and industry. ZnO, as a typical MOS, exhibits potential applications in toxic gas detection, owning to its wide band gap, n-type transport characteristic and excellent electrical performance. Meanwhile, doping is an effective way to improve the sensing performance of ZnO materials. In this review, the effects of different types of doping on morphology, crystal structure, band gap and depletion layer of ZnO materials are comprehensively discussed. Theoretical analysis on the strategies for enhancing the sensing properties of ZnO is also provided. This review puts forward the reasonable insight for designing efficient n-type ZnO-based semiconductor oxide sensing materials.

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Morphology controlled synthesis of Al doped ZnO nanosheets on Al alloy substrate by low-temperature solution growth method

Abstract: We report the morphology-controlled synthesis of aluminium (Al) doped zinc oxide (ZnO) nanosheets on Al alloy (AA-6061) substrate by a low-temperature-solution growth method without using any external seed layer and doping process.

Cited by 46 publications

References 33 publications

Synthesis of ZnO nanorods on a flexible Phynox alloy substrate: influence of growth temperature on their properties

Synthesis of ZnO nanorods on a flexible Phynox alloy substrate: influence of growth temperature on their properties

Morphology controlled growth of ZnAl-layered double hydroxide and ZnO nanorod hybrid nanostructures by solution method

Advances in Doped ZnO Nanostructures for Gas Sensor

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