Strong yellow emission of ZnO hollow nanospheres fabricated using polystyrene spheres as templates

Zang, Zhigang; Wen, Mengqing; Chen, Weiwei; Zeng, Yangfu; Zu, Zhiqiang; Zeng, Xiaofeng; Tang, Xiaosheng

doi:10.1016/j.matdes.2015.06.141

Cited by 117 publications

(18 citation statements)

References 20 publications

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“…ZnO is used in various potential applications such as light emitting diodes, photodetectors, chemical and biosensors, solar cells, piezoelectric nanogenerators, and actuators. Moreover, ZnO has been used extensively in several photochemical applications [23][24][25][26]. ZnO is wide bandgap materials with (3.37 eV), large binding energy (60 eV) at room temperature, inexpensive, nontoxic and chemically resistive material [27][28][29][30][31][32][33][34][35].…”

Section: Introductionmentioning

confidence: 99%

Efficient photo catalysts based on silver doped ZnO nanorods for the photo degradation of methyl orange

Bhatti

Shah

Almani

et al. 2019

Ceramics International

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In this study, the doped ZnO nanorods with silver (Ag) as photosensitive material are prepared by the solvothermal method. The structural and optical characterization is carried out by the scanning electron microscopy, X-ray diffraction, energy dispersive spectroscopy and UV-visible spectroscopy. The use of Ag as dopant did not alter the morphology of ZnO except sample 4 which has flower like morphology. The Ag, Zn and O are the main constituent of doped materials.The XRD revealed a hexagonal phase for ZnO and cubic phase for silver and confirmed the successful doping of Ag. The photocatalytic activity of Ag doped ZnO nanorods was investigated for the photo degradation of methyl orange. The photocatalytic measurements show that 88% degradation of methyl orange by the sample 4 within the 2 h of UV light treatment (365nm) is significant advancement in the photocatalyst and provide the inexpensive and promising materials for the photochemical applications.

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Section: Introductionmentioning

confidence: 99%

Efficient photo catalysts based on silver doped ZnO nanorods for the photo degradation of methyl orange

Bhatti

Shah

Almani

et al. 2019

Ceramics International

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“…Therefore, it has been used for myriad applications in solar cell, both thin films [4] and dye-synthesized solar cell (DSSC) [2], light emitting diodes (LED) [5], transparent conductive oxide (TCO) [6], gas sensors [7], and as a mid-layer in thin film solar cells [8]. Amongst different metal oxides, probably zinc oxide has the most different nano-shapes comprise nanowire [9], nanorod [10], hollow nanospheres [11], colloidal nanoparticles [12], and nanotube [13] which they are still under intensive researches. A host of different groups have developed this metal oxide semiconductor (MOS) thin film by variety of methods such as DC magnetron sputtering [14], RF sputtering [15], metal organic chemical vapor deposition (MOCVD) [16], thermal-evaporation [17].…”

Section: Introductionmentioning

confidence: 99%

Structural and optical characterization of ZnO and AZO thin films: the influence of post-annealing

Dejam

Elahi

Nazari

et al. 2015

J Mater Sci: Mater Electron

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In the present study, ZnO and Al:ZnO (AZO) thin films were prepared by reactive RF sputtering on quartz substrates at a constant oxygen partial pressure and a typical sputtering power. Films were annealed at different temperatures in argon ambient in the oven to study their various structural and optical properties. It was understood that introducing Al into ZnO structure would affect the ZnO crystalline structure noticeably. It was observed that annealing had great influence on various properties of thin films while ZnO film showed low crystallinity, Al doping into ZnO structure pronounced significant improvement in both crystallinity and particle sizes. It was found that crystal structures, average crystalline sizes, and topology of all thin films were modified enormously by post-annealing. It was shown that films transparency fluctuated by annealing, in which the transparency of AZO thin film annealed at 500°C was much greater than others. Annealing led to decrease optical band gap of all annealed films from 3.31 to 3.26 eV for ZnO and 4 to 3.4 eV for AZO films. Photoluminescence manifested that blue emission in as-deposited film led to two different blue and violet emissions in all AZO and ZnO films. It was identified that the emission intensity of AZO film annealed at 500°C was 12 times more than other ZnO and AZO films.

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“…They concluded that the ZnO nanoparticles not only have applications in biological fluorescence imaging, but also in the field of targeted drug delivery. Zang et al have observed the strong yellow emission at 550 nm of ZnO hollow nanospheres fabricated using polystyrene spheres as templates [31]. The experimental observations proved that the prepared ZnO hollow nanospheres can be used in fabricating the optoelectronic devices.…”

Section: Introductionmentioning

confidence: 92%

Nd doped lead titanate crystals for microelectronic memory device applications

Chakraborty

Chaudhuri

Kumar

et al. 2016

J Mater Sci: Mater Electron

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Using high energy ball milling technique the nanocrystalline Pb 1-3x/2 Nd x TiO 3 (where x = 0.01), abbreviated as PNT, ceramics with tetragonal shape has been synthesized and analyzed through X-ray diffraction and scanning electron microscope analysis. The frequency dependent ac conductivity and dielectric constant measurements of the PNT ceramics sintered at 800, 900, 1000 and 1100°C has been performed in the 100-525°C temperature range and the density of states at the Fermi level evaluated. The minimum hopping length and dielectric constants in PNT has been explained successfully using the correlated barrier hopping model. With first order correction to energy the quantum theory of ferroelectric has been applied to explain the dielectric behavior in the paraelectric phase. The explanation for density of states at morphotropic phase boundary and the conduction mechanism of charge transport were found to be in good agreement with the experimental observations.

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Strong yellow emission of ZnO hollow nanospheres fabricated using polystyrene spheres as templates

Cited by 117 publications

References 20 publications

Efficient photo catalysts based on silver doped ZnO nanorods for the photo degradation of methyl orange

Efficient photo catalysts based on silver doped ZnO nanorods for the photo degradation of methyl orange

Structural and optical characterization of ZnO and AZO thin films: the influence of post-annealing

Nd doped lead titanate crystals for microelectronic memory device applications

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