Study of the properties of undoped and fluorine doped zinc oxide nanoparticles

González‐Hernández, Rafael; Martı́nez, Arturo I.; Falcony, C.; López, Antonio Fernández; Pech-Canul, M.I.; Hdz-García, H.M.

doi:10.1016/j.matlet.2010.04.001

Cited by 44 publications

(22 citation statements)

References 11 publications

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“…5b, after annealing the absorption peaks are observed much sharper and clear and the absorbance edge decreases with increasing fluorine concentration for all samples. These obtained results are in agreement with the work done by Gonzalez et al 8 , they reported that the band gap energy is increased with the 5 at % fluorine doping.…”

Section: Resultssupporting

confidence: 93%

Synthesis of Fluorine Doped Zinc Oxide Particles by Hydrothermal Method

Kerli¹,

Alver²,

Yaykasli³

et al. 2013

Asian J. Chem.

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Zinc oxide with a wide band gap energy (3.37 eV) and a hexagonal wurtzite crystal structure has attracted a great deal of attention for its potential application including piezoelectric devices, transistors, photodiodes, photo catalysis, biomedicine, etc. 1-4. Various synthesis methods such as wet-chemical route 5 , chemical vapour deposition (CVD) 6 , vapour-liquid-solid (VLS) 7 , chemical solution methods 8 and hydrothermal method 9 have been used to grow doped ZnO micro/nano-crystals. Among these methods, the hydrothermal method is promising for fabricating ideal material with special morphology because of the simple, fast, less expensive, low growth temperature, high yield and scalable process. In recent years, introducing cationic impurities in ZnO structure offers an effective approach to adjust structural, optical and electrical properties 10-14. An alternative way to adjust the physical properties of the ZnO particles is the replacement of oxygen ions (O 2-) in the ZnO lattice by anionic impurities, such as fluorine (F-) 15. Most of the previous research works have focused on fluorine-doped ZnO thin films. There are less studies with fluorine doped ZnO particles. In addition, in many studies ZnO particles were synthesized by using zinc acetate or zinc nitrate precursor, but using zinc chloride as a precursor material is very seldom reported. In this paper, we have studied the fluorine doped ZnO particles (ZnO:F) prepared by hydrothermal technique using zinc chloride precursor and we have also investigated

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Section: Resultssupporting

confidence: 93%

Synthesis of Fluorine Doped Zinc Oxide Particles by Hydrothermal Method

Kerli¹,

Alver²,

Yaykasli³

et al. 2013

Asian J. Chem.

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show abstract

“…This result is consistent with the report on the F-doped ZnO nanoparticles and thin films. 48,49 Therefore, the intensities of all the NBE, blue, blue-green, and green emissions (related to the V Zn defects) are falling consistently with the increase of the F concentration in the ZnO:Li lattice. 13,16 where Li doping is found to enhance and stabilize RTFM in ZnO host.…”

Section: Pl Propertiesmentioning

confidence: 85%

Influence of Li-N and Li-F co-doping on defect-induced intrinsic ferromagnetic and photoluminescence properties of arrays of ZnO nanowires

Ghosh

Khan

Varma

et al. 2012

Journal of Applied Physics

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The role of N/F co-doping on the defect-driven room-temperature d0 ferromagnetism in group-I element Li doped ZnO nanowire arrays has been investigated. The ferromagnetic signature of pristine ZnO nanowires has enhanced significantly after Li doping but the Li-N co-doping has found to be more effective in the stabilization and enhancement in room-temperature ferromagnetism in ZnO nanowires. Saturation magnetization in Li-doped ZnO nanowires found to increase from 0.63 to 2.52 emu/g and the Curie temperature rises up to 648 K when 10 at. % N is co-doped with 6 at. % Li. On the other hand, Li-F co-doping leads to exhibit much poor room-temperature ferromagnetic as well as visible luminescence properties. The valance state of the different dopants is estimated by x-ray photoelectron spectroscopy while the photoluminescence spectra indicate the gradual stabilization of Zn vacancy defects or defect complexes in presence of No acceptor states, which is found to be responsible for the enhancement of intrinsic ferromagnetism in ZnO:Li matrix. Therefore, the Li-N co-doping can be an effective parameter to stabilize, enhance, and tune zinc vacancy-induced room-temperature d0 ferromagnetism in ZnO nanowires, which can be an exciting approach to prepare new class of spintronic materials.

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“…19 Previous studies have thus focused on the investigation of the F-doped ZnO materials with respect to their optical and electronic properties. 20,21 Further applications of F-doped ZnO thin films include the use as a gas sensing material. 22,23 While ZnO for the application in optoelectronics is required to form thin solid layers, in heterogeneous catalysis a high surface area and thus the generation of large amounts of polycrystalline powder is required.…”

Section: Introductionmentioning

confidence: 99%