Sonicated sol–gel preparation of nanoparticulate ZnO thin films with various deposition speeds: The highly preferred c-axis (002) orientation enhances the final properties

Malek, M. F.; Mamat, M. H.; Khusaimi, Z.; Sahdan, Mohd Zainizan; Musa, M.Z.; Zainun, Ayib Rosdi; Suriani, A. B.; Sin, N. D. Md; Hamid, Sharifah Bee Abd; Rusop, M.

doi:10.1016/j.jallcom.2013.07.202

Cited by 98 publications

(39 citation statements)

References 64 publications

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“…The E g is consistent with the trend in the transmittance and absorbtion coefficient results. The increased of E g indicates that the compressive stress decreased as the annealing temperature increased from 400 ºC to 500 ºC [24]. This explains the compressive stress change the interatomic spacing of semiconductor that affects the E g .…”

Section: Resultsmentioning

confidence: 89%

Optical properties of tetrapod nanostructured zinc oxide by chemical vapour deposition

Rahman

Karim

Kamaruzaman

et al. 2018

J. Fundam and Appl Sci.

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This work studies the effects of annealing temperature ranging from 100-500 ºC towards its physical and optical properties. FESEM images showed that the structural properties of tetrapod nanostructured ZnO thin film were affected by the annealing temperature. The thickness of thin film is strongly support the FESEM analysis. The optical band gap energy (E g ) was evaluated at 2.78 -3.06 eV, which the ZnO thin film was found to be influenced by the change of interatomic spacing of semiconductor. The result shows that the higher annealing temperature greatly affects the physical structure of tetrapod nanostructured ZnO thin film to become narrow and longer length.

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Section: Resultsmentioning

confidence: 89%

Optical properties of tetrapod nanostructured zinc oxide by chemical vapour deposition

Rahman

Karim

Kamaruzaman

et al. 2018

J. Fundam and Appl Sci.

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“…4 presents the optical transmittance and intersect of absorption coefficient spectra of Gd doped ZnO films deposited using different concentrations measured at room temperature with wavelength ranging from 350 -800 nm. The transmission decreased sharply near the ultraviolet region at approximately 390 nm [1]. All films exhibit good transparency in the visible spectral range with an average transmission of approximately 94%.…”

Section: Characterization Techniquementioning

confidence: 96%

Influence of Gd Doping on the Structural and Optical Properties of ZnO

Rasid

Tawil

Ani

et al. 2015

AMM

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Abstract. Doping transition metal or rare-earth metal ion are one of the most popular topics in semiconductors. In this work, gadolinium (Gd) doped zinc oxide thin films was prepared using the spin -coating technique with different concentrations in atomic percent (at. %). The influences of rare-earth ions doped into the zinc oxide films were studied. The effects on the physical and optical properties of the films were investigated by field emission scanning electron microscope, x-ray diffraction, atomic force microscopy and ultraviolet-visible spectrophotometer. It was found that the properties of zinc oxide can be tuned by changing the concentration physical and optical of Gd.

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“…During annealing the gels, zinc-acetate decomposed between 110-350 °C with the release of CH 3 COOH, acetone and CO 2 . The N content of the chelating agent was responsible for NH 3 and NO evolution. The thermal behavior of the doped gels was similar, but there were also differences in the mass losses and amount of released gases.…”

Section: Tablementioning

confidence: 99%

“…Hence, ZnO, Li doped and Li,Ni co-doped ZnO powders were prepared by heat treatment of gels obtained from alcoholic Zn(CH 3 COO) 2 3 N as chelating agent. The properties of the powders and their thermal treatment were studied by TG/DTA, DSC, EGA-MS, FTIR, XRD and SEM-EDX methods.…”

mentioning

confidence: 99%

Thermal study on the synthesis of the doped ZnO to be used in TCO films

Mihaiu

Szilágyi

Atkinson

et al. 2015

J Therm Anal Calorim

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ZnO, Li doped and Li,Ni co-doped ZnO powders to be later used as transparent conductive oxide (TCO) thin film were prepared by heat treatment of gels obtained from alcoholic Zn(CH 3 COO) 2 •2H 2 O, LiNO 3 •nH 2 O and NiSO 4 •6H 2 O solutions with (CH 3 CH 2 OH) 3 N as chelating agent. The properties of the powders and their thermal treatment were studied by thermogravimetric and termodifferential anlysis (TG/DTA), differential scanning calorimetry (DSC), evolved gas analysis coupled with mass spectroscopy (EGA-MS), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and scanning electron microscopy coupled with energy dispersive X-ray (SEM/ EDX). The as-prepared gels consisted of submicron platelet-like particles and contained zinc acetate dihydrate and hydrozincite in different amount and with different preferred orientations. During annealing the gels, zinc-acetate decomposed between 110-350 °C with the release of CH 3 COOH, acetone and CO 2 . The N content of the chelating agent was responsible for NH 3 and NO evolution. The thermal behavior of the doped 3 gels was similar, but there were also differences in the mass losses, amount of released gases.Based on TG/DTA data, ZnO powders were obtained from the gels by annealing both at 275 and 500 °C. After heating at 275 °C, the obtained powders consisted of spherical 1-2 micron grains of wurtzite. The inclusion of the dopants was successful according to EDX and cell parameter data. Thermal study of the powder annealed at 275 °C confirmed that they still contain some zinc acetate. In the case of the doped samples the mass loss was smaller, since the Li and Ni dopants catalized the composition of zinc acetate during the previous annealing at 275 °C. After annealing the gels at 500 °C, stable un-doped ZnO or doped ZnO particles were obtained.

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Sonicated sol–gel preparation of nanoparticulate ZnO thin films with various deposition speeds: The highly preferred c-axis (002) orientation enhances the final properties

Cited by 98 publications

References 64 publications

Optical properties of tetrapod nanostructured zinc oxide by chemical vapour deposition

Optical properties of tetrapod nanostructured zinc oxide by chemical vapour deposition

Influence of Gd Doping on the Structural and Optical Properties of ZnO

Thermal study on the synthesis of the doped ZnO to be used in TCO films

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