Synthesis of ZnO nanosheets via electrodeposition method and their optical properties, growth mechanism

Yang, Jun; Wang, Yongqian; Kong, Jinming; Jia, Hanxiang; Wang, Zhengshu

doi:10.1016/j.optmat.2015.04.016

Cited by 57 publications

(44 citation statements)

References 36 publications

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“…Mahalingam et al (2005) reports that those nodular structures are characteristic of the ZnO growth 19 . The ZnO nanosheets in films A and B can be attributed to the concentration of Zn +2 in solution, as observed by Yang et al 20 .When increasing the potential, those nanosheets are no longer noticed.…”

Section: Morphologymentioning

confidence: 55%

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Effects of Potential Deposition on the Parameters of ZnO dye-sensitized Solar Cells

et al. 2018

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Dye-sensitized solar cells (DSSCs) are a feasible option for photovoltaic energy. Zinc oxide is an n-type semiconductor employed as photoanode on DSSCs. ZnO thin films were electrodeposited to study the effects of different potentials applied during deposition. SEM images, XRD and UV-Vis analysis were conducted to reveal the morphologic, structural and optical properties of the films at three potentials. DSSCs were assembled and the photovoltaic parameters were obtained through J-V plots. DSSC with 0.031% of efficiency was demonstrated at -1.4 V of deposition potential.

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Section: Morphologymentioning

confidence: 55%

“…5), reaching lower values at the IR region 24 . The obtained absorbance peaks were at wavelength less than 380 nm, same as Yang et al 20 …”

Section: Optical Characterizationmentioning

confidence: 67%

Effects of Potential Deposition on the Parameters of ZnO dye-sensitized Solar Cells

et al. 2018

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“…The results of the SEM were collected together with a PVP concentration of 3-5 g, as shown in Figure 2b-d. The findings show that the sample exhibited a nanosheet morphology [52][53][54][55] (see Figure 2b,c). As illustrated in Figure 2c,d, the nanosheet quantity increases in line with an increase in the PVP concentration.…”

Section: Surface Morphology Analysismentioning

confidence: 91%

Calcined Solution-Based PVP Influence on ZnO Semiconductor Nanoparticle Properties

et al. 2017

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Abstract:A water-based solution of polyvinylpyrrolidone (PVP) at various concentrations and zinc nitrates were used in conjunction with calcination to produce zinc oxide semiconductor nanoparticles. The extent to which the zinc oxide semiconductor nanoparticles had become crystallized was measured using X-ray diffraction (XRD), whilst morphological characteristics were determined using scanning electron microscopy (SEM). Transmission electron microscopy (TEM) supported by XRD results were used to evaluate the average particle size. Fourier transform infrared spectroscopy (FT-IR) was then carried out in order to identify the composition phase, since this suggested that the samples contained metal oxide bands and that all organic compounds had been effectively removed after calcination. A UV-VIS spectrophotometer was used to determine the energy band gap and illustrate optical features. Additionally, photoluminescence (PL) spectra revealed that the intensity of photoluminescence decreased with a decrease in particle size. The obtained results have mainly been inclusive for uses by several semiconductor applications in different fields, such as environmental applications and studies, since an absorption process for energy wavelengths could efficiently occur.

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“…Similar to porous ZnO thin films, the prepared nanosheet array demonstrated promising MB photodegradation properties under visible-light irradiation. In particular, the degradation efficiency could reach 90% after 180 min, and was 1.5 times better than for commercial ZnO powders [98]. Due to the high specific surface area of electrodeposited ZnO thin films, conductive hydrophobic or even superhydrophobic surfaces were prepared as well.…”

Section: Electrodepositionmentioning

confidence: 99%

Porous Zinc Oxide Thin Films: Synthesis Approaches and Applications

Laurenti

Cauda

2018

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Zinc oxide (ZnO) thin films have been widely investigated due to their multifunctional properties, i.e., catalytic, semiconducting and optical. They have found practical use in a wide number of application fields. However, the presence of a compact micro/nanostructure has often limited the resulting material properties. Moreover, with the advent of low-dimensional ZnO nanostructures featuring unique physical and chemical properties, the interest in studying ZnO thin films diminished more and more. Therefore, the possibility to combine at the same time the advantages of thin-film based synthesis technologies together with a high surface area and a porous structure might represent a powerful solution to prepare ZnO thin films with unprecedented physical and chemical characteristics that may find use in novel application fields. Within this scope, this review offers an overview on the most successful synthesis methods that are able to produce ZnO thin films with both framework and textural porosities. Moreover, we discuss the related applications, mainly focused on photocatalytic degradation of dyes, gas sensor fabrication and photoanodes for dye-sensitized solar cells.

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Synthesis of ZnO nanosheets via electrodeposition method and their optical properties, growth mechanism

Cited by 57 publications

References 36 publications

Effects of Potential Deposition on the Parameters of ZnO dye-sensitized Solar Cells

Effects of Potential Deposition on the Parameters of ZnO dye-sensitized Solar Cells

Calcined Solution-Based PVP Influence on ZnO Semiconductor Nanoparticle Properties

Porous Zinc Oxide Thin Films: Synthesis Approaches and Applications

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