Preparation, growth and characterization of nonvacuum Cu-doped ZnO thin films

Asikuzun, E.; Öztürk, O.; Arda, L.; Terzioğlu, C.

doi:10.1016/j.molstruc.2018.03.053

Cited by 65 publications

(26 citation statements)

References 18 publications

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“…As seen in Table 1, XRD patterns of TM doped samples slightly shifted which indicated that imperfections were formed [18]. Ni-and Codoping had an improving effect on the crystal quality compared to pure ZnO due to larger radius of Fe 2+ ion (77 pm) than Zn 2+ (72 pm) [19]. Due to the zinc and TM (Ni-and Co-) solutions were of the same chlorine origin, growth process thereby crystallization had also been improved [20].…”

Section: Structural Propertiesmentioning

confidence: 96%

Geçiş Metali Katkılı ZnO’in Ferromanyetizma ve Büyüme Korelasyonunun İncelenmesi

Sarf

Asikuzun

Yakar

2021

International Journal of Advances in Engineering and Pure Sciences

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In this study, a series of 3d transition metal (TM) (Co, Ni and Fe) doped ZnO particles synthesized by simple co-precipitation method. Structural, morphological and magnetic properties were investigated to determine correlation between growth process and ferromagnetism of metal doped ZnO samples. All samples had ZnO hexzagonal würtzite structure and slightly shift of ZnO indexed peaks was observed by TM incorporation in ZnO. Although ZnO samples had granular forms, agglomerative forms had emerged in TM:ZnO samples due to the fast growth process. The pure ZnO sample transformed paramagnetic to ferromagnetic by TM incorporation due to carrier mediated exchange interaction between TM ions. The results demonstated that doping with Fe 3+ ions in ZnO structure had enhanced ferromagnetism although fast growth and high particle agglomeration.

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Section: Structural Propertiesmentioning

confidence: 96%

Geçiş Metali Katkılı ZnO’in Ferromanyetizma ve Büyüme Korelasyonunun İncelenmesi

Sarf

Asikuzun

Yakar

2021

International Journal of Advances in Engineering and Pure Sciences

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“…Among them, the sol-gel method allows the using of a wide selection of solvents, surfactants, and heat treatment, making it easier to control the particle size and shape. For instance, the hollow microsphere with a diameter of approximately 5 μm composed of uniform nanoparticles with a diameter of approximately 20 nm was observed in the work of Chen et al (2020); the quasi-sphere shape with uniform morphologies has been reported (Acedo-Mendoza et al 2020); the hybrid nanocomposite in which CuO nanoparticle is attached to the ZnO-T tetrapod surface (Sharma et al 2020), ZnO nanorod (Patil et al 2019) , nanoflower-like structure (Mardikar et al 2020), nanowires (Chou et al 2017), and thin film (Asikuzun et al 2018) was investigated. The composite of ZnO and CuO was studied with various ratio of Zn/Cu:Cu content with very low Zn/Cu ratio in the range 1000/3÷1000/9 (Singh and Soni 2020), with the mass ratios as 99.9/0.1, 98.0/2.0, and 95.0/5.0 (Ruan et al 2020), or different percentages of Cu in the catalyst of 1, 3, 5, and 10% (Harish et al 2017), event component from 100% Zn to 100% Cu (Lavín et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization of novel ZnO/CuO nanoparticles, and the applications in photocatalytic performance for rhodamine B dye degradation

Truong

Tho

Truong

et al. 2021

Environ Sci Pollut Res

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Photocatalytic deg radation of environmental pollutants is being up to date for the treatment of contaminated water. In the present study, ZnO/CuO nanomaterials were successfully fabricated by a simple sol-gel method and investigate the photodegradation of rhodamine B (RhB). The synthesized ZnO/CuO nanoparticles were characterized by X-ray diffraction (XRD), energy-dispersive spectroscopy (EDS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), UV-Vis diffuse reflectance spectroscopy (UV-Vis-DRS), thermal analysis (TGA), surface charge, and Fourier transform infrared spectroscopy (FTIR). The photo-degradation of the dye RhB was followed spectroscopically. The overall composition of ZnO/CuO material was found to be wurtzite phase, with particle size of 30 nm, and the Vis light absorption increased with an increase of Cu content. The ZnO/CuO nanomaterials were highly active leading to a photo-degradation of 10 ppm RhB reaching 98% within 180 min at 0.1 g/L catalyst dosage. The change in surface charge after degradation evaluated by ζ potential measurements and the differences in functional vibration group monitored by Fourier transform infrared spectroscopy (FTIR) indicates that the RhB adsorption on the Zn 45 Cu surface was insignificant. And scavenging experiments demonstrate that the RhB degradation by ZnO/CuO nanomaterials involves to some degree hydroxyl radicals.

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“…Atomic force microscopy (AFM) helps to visualize the growth of particles on the film surface [38]. The 3D micrographs of prepared pure and ZnO:Co thin films were given in figures 5(a-e), recorded with a scan area of 2.5 μm × 2.5 μm.…”

Section: Afm Analysismentioning

confidence: 99%

“…Co system: (i) presence of the cobalt oxides or the presence of clusters of cobalt metal and (ii) successful doping of the Co ions on Zn sites[11,38,48]. Presence of ferromagnetic behavior is due to intrinsic coupling between the atoms of doped materials.…”

mentioning

confidence: 99%

Structural and magnetic properties of cobalt doped ZnO thin films deposited by cost effective nebulizer spray pyrolysis technique

Abirami¹,

Arulanantham²,

Wilson³

2020

Mater. Res. Express

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In this work, we report the structural, optical and magnetic properties of Co doped ZnO thin films fabricated by nebulizer spray pyrolysis technique. Five different thin films were fabricated with various doping concentration of cobalt. These thin films posses hexagonal wurtzite structure with polycrystalline nature and strongly oriented along with (002) and (101) direction. From x-ray diffraction pattern, average crystallite sizes were calculated and are found to be decreases with Co doping concentration. The dislocation density and microstrain values of the coated films increased gradually with doping concentration. The SEM/AFM studies reveal the change from spherical shape to petal shaped grains and it is also found that the size of grains and roughness decreases with Co increasing doping concentration. The lowering of the optical band gap energy from ∼ 3.24 eV to 3.05 eV shows doping by Co in ZnO gives rise to band gap bowing in ZnO:Co thin films. The M-H curve confirms the god ferromagnetism in Co doped ZnO thin films.

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Preparation, growth and characterization of nonvacuum Cu-doped ZnO thin films

Cited by 65 publications

References 18 publications

Geçiş Metali Katkılı ZnO’in Ferromanyetizma ve Büyüme Korelasyonunun İncelenmesi

Geçiş Metali Katkılı ZnO’in Ferromanyetizma ve Büyüme Korelasyonunun İncelenmesi

Synthesis, characterization of novel ZnO/CuO nanoparticles, and the applications in photocatalytic performance for rhodamine B dye degradation

Structural and magnetic properties of cobalt doped ZnO thin films deposited by cost effective nebulizer spray pyrolysis technique

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