Size-controlled synthesis of ZnO nanoparticles and their photoluminescence properties

Zhou, Ji; Zhao, Fengying; Wang, Yingling; Zhang, Yan; Yang, Lin

doi:10.1016/j.jlumin.2006.01.089

Cited by 145 publications

(55 citation statements)

References 6 publications

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“…From this XRD patterns analysis, we determined peak intensity, position and width, full-width at half-maximum (FWHM) data. All the diffraction patterns indexed to the hexagonal wurtzite structure zincite phase of ZnO (23)(24)(25)(26) with crystal lattice 3.902 and 3.900 , respectively, which is in good agreement with the literature values (card No.01-070-2551) and (card No.01-36-1451) respectively. (Fig.…”

Section: Characterization Of Zinc Oxide Nanoparticles Thermal Gravimesupporting

confidence: 89%

“…ZnO nanoparticles are promising candidates for various applications, such as solar cells (6) , nanogenerators (7) , bio-sensors (8) , varistors (9) , gas sensors (10) , photo-detectors (11) , and photo-catalysts (12) . From the literature survey, it was found that various approaches for the synthesies of ZnO NPs have been developed, namely, sol-gel (13) , thermal decomposition of organic precursor (14) , microemulsion (15) , spray pyrolysis (16) , electrodeposition (17) , microwave-assisted techniques (18) , ultrasonic (19) , chemical vapor deposition (20) , hydrothermal (21) and precipitation methods (22)(23) . Most of these techniques were Z not extensively used on a huge scale, but chemical synthesis has been widely used due to its simplicity and lower cost.…”

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confidence: 99%

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Preparation and Characterization of Micro-Porous ZnO Nanoparticles

Hashem¹

2016

Egypt. J. Chem.

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Section: Characterization Of Zinc Oxide Nanoparticles Thermal Gravimesupporting

confidence: 89%

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confidence: 99%

Preparation and Characterization of Micro-Porous ZnO Nanoparticles

Hashem¹

2016

Egypt. J. Chem.

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“…In all these cases, the materials properties are strongly dependent on the synthesis parameters. Some studies have demonstrated the role of gelatin as an organic matrix in controlling the nucleation/growth of ZnO nanoparticles [12][13][14] exploring changes in the gelatin concentration and gel formation after temperature reduction of the solution. In the present work, the results of structural/ optical characterization are reported, using the synthesis of ZnO nanostructures via the proteic sol-gel method 15 that explores a Zn/Gelatin molar ratio in which Zn 2+ does not exceed carboxyl and hydroxyl groups of gelatin.…”

Section: Introductionmentioning

confidence: 99%

Annealing Effects on the Structural and Optical Properties of ZnO Nanostructures

et al. 2018

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ZnO nanostructures were synthesized by a proteic sol-gel method, using zinc nitrate hexahydrate and gelatin as precursors. Size and shape evolution of ZnO nanostructures were achieved by annealing temperature in the range 250-1000 ºC. The crystalline structure, morphology and optical properties of the ZnO nanoparticles were characterized by X-Ray Diffraction (XRD), Raman Spectroscopy (RS), Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), and room temperature Photoluminescence (PL). The result of structural characterization shows the formation of platelets and nanorods in the micro-scale and ZnO nanostructures with high quality hexagonal wurtzite crystal. Sharp peaks in RS after annealing temperature, related to wurtzite structure, were observed corroborating with XRD and TEM measurements. Room temperature PL spectra showed two contribution bands which peaked at ~380 nm, originating from the recombination of free excitons, and ~520 nm corresponding to the impurities and structural defects, like oxygen vacancies and zinc interstitial. The effects of annealing temperature in the structural and optical properties are detailed and the results compared among the experimental techniques. The high quality of the samples obtained by an alternative organic precursor method opens a low-cost route to technological applications of zinc oxide.

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“…www.wjpr.net as hexagonal wurtzite phase of ZnO [16,17] with lattice constants a = b = 0.324nm and c = 0.521nm (JPCDS card number: 36-1451) [18] , and further it also confirms the synthesized nanopowder was free of impurities as it does not contain any characteristics XRD peaks other than ZnO peaks. The synthesized ZnO nanoparticle diameter was calculated using DebyeScherrer formula [19] d = 0.89λ /β cos θ…”

Section: Uv-visible Spectroscopymentioning

confidence: 88%

Biosynthesis and Characterization of Zinc Oxide Nanoparticle Using Ficus Religiosa Leaves Extract

Heer¹

2017

WJPR

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The objective of this study is to synthesize zinc oxide nanostructures with the most practical ways by using Ficus Religiosa leaves extract and characterize the nanostructures. ZnO nanoparticles were synthesized using Zinc Nitrate (Zn(NO 3 ) 2 ) as a precursor and Ficus Religiosa leaves extract solvent and distilled water were used as medium. ZnO nanoparticles were characterized by using XRD, UVVisible spectroscopy, EDX and SEM, FTIR. Result of EDX characterization shows that the ZnO nanoparticles has good purity with (Zinc content of-72.48% and; Oxygen content of-27.52%). XRD result spectrum displays mainly oxygen and zinc peaks, which indicate the crystallinity in nature as exhibited. SEM micrographs shows that synthesized ZnO have a cubical structure. The obtained ZnO nanoparticles are homogenous and consistent in size which corresponds to the XRD result that exhibit good crystallinity.

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Size-controlled synthesis of ZnO nanoparticles and their photoluminescence properties

Cited by 145 publications

References 6 publications

Preparation and Characterization of Micro-Porous ZnO Nanoparticles

Preparation and Characterization of Micro-Porous ZnO Nanoparticles

Annealing Effects on the Structural and Optical Properties of ZnO Nanostructures

Biosynthesis and Characterization of Zinc Oxide Nanoparticle Using Ficus Religiosa Leaves Extract

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