Synthesis and optical properties of chemical bath deposited ZnO thin film

Taunk, P.B.; Das, R.; Bisen, D. P.; Tamrakar, Raunak Kumar; Rathor, Nootan

doi:10.1016/j.kijoms.2015.11.002

Cited by 48 publications

(20 citation statements)

References 23 publications

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“…This result shows that films of ZnO conduct optically in UV region more than in VIS -NIR regions of the electromagnetic spectrum. The optical results obtained are in agreement with the results of [11,18]. Figure 8 shows the graph of the plot of (αhv) 2 against photon energy to determine the band gap of the films.…”

Section: Optical Propertiessupporting

confidence: 87%

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Effect of Dip Time on Electrodeposited Zinc Oxide Nanofilm

Okoli¹

2018

AJMSP

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Nanofilms of Zinc Oxide (ZnO) were fabricated from solutions of zinc tetraoxosulphate heptahydrate, citric acid, and sodium hydroxide onto a Fluorine Tin Oxide (FTO) conductive glass by elecrodeposition process. Time as bath parameter was varied. Three samples with time interval of 30 seconds, 60 seconds and 90 seconds were fabricated. Absorbance of the films was determined with the help of spectrophotometer. Other optical properties of the nanofilms were calculated using the appropriate equations from the literature. The deposited nanofilms have high absorbance in UV region and low absorbance in VIS -NIR region. Transmittance of the nanofilms is low in UV region and high in VIS -NIR region. Reflectance of the films is low throughout the UV -VIS -NIR regions. The optimal optical thickness of 270 nm was obtained at 90 seconds. The bandgap of the nanofilms obtained is between 3.30 to 3.60 eV. Average crystallite size of 43.04 nm was obtained for the deposited ZnO thin film.

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Section: Optical Propertiessupporting

confidence: 87%

“…Band gap was determined by extrapolating the straight portion to the photon energy axis at 0, the band gap was found to be between 3.30 eV and 3.60 eV. This band gap values are in line with works reviewed by [7,18,19]. Figure 9 shows the crystal structural studies of the ZnO nanofilm deposited at 30 seconds.…”

Section: Optical Propertiessupporting

confidence: 80%

Effect of Dip Time on Electrodeposited Zinc Oxide Nanofilm

Okoli¹

2018

AJMSP

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“…Much more studies have been reported in the literature about ZnO-and ZnS-films which have been produced by chemical bath, spin coating, ultrasonic spray pyrolysis, atomic layer deposition (ALD) or chemical vapor deposition (CVD) [9,11]. Among them, chemical bath deposition has beneficial properties such as simple set-up, short time of chemical reactions, nonexpensive, non-vacuum ambient and producible even at low temperatures (˂100 °C) [12]. On the other hand, "Fatma Özütok, Emin Yakar Annealing time effect on the optical properties of zn(o,oh,s) films onto zno seed layer under un-vacuum ambient…" keeping under control of film growth and adherent/homogenous film production are necessary to increase buffer layer efficiency.…”

Section: Introductionmentioning

confidence: 99%

Annealing time effect on the optical properties of Zn(O,OH,S) films onto ZnO seed layer under un-vacuum ambient

Özütok

Yakar²

2018

Sakarya University Journal of Science

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In this study, Zn (O,OH,S) films were synthesized onto ZnO seed layers by chemical bath deposition, which were annealed at 500 °C. The differences of structural, morphological and detailed optical properties of the films were investigated depending on the annealing time (between 30 min. and 90 min.). While samples of 30.min and 90 min. showed decomposed structures, sample of 60 min. showed different dimensions of nano-flower structures. Although all films had ZnO-hexzagonal crystal structure, the most obvious ZnS-related peaks were observed in the sample of 90 min. Optical absorption edge was shifted at 362 nm from Uv-Vis spectroscopy. Although ZnO, Zn(OH)2 vibration related peaks were so sharp, ZnS vibration peaks were so weak for all samples from FTIR. The PL intensities were differential depending on the annealing time but defect state-corresponding peaks were similar for each films.

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“…Effects of deposition time on structural and morphological properties of ZnO nanoflowers have been investigated by X-ray diffraction (XRD) method and Field Emission Scanning Electron Microscope (FESEM). In studies with chemical bath deposition technique, ZnO nanoflowers deposition takes several hours and annealing is required for crystallization (Taunk et al, 2015;Poornajar et al, 2016;Shaikh et al, 2016). Also complexing agents are used in chemical bath solution as a stabilizer.…”

Section: Introductionmentioning

confidence: 99%

Effects of Deposition Time on Structural and Morphological Properties of Synthesized ZnO Nanoflowers Without Using Complexing Agent

Temel

Gökmen

Yaman

2017

ESJ

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ZnO nanoflowers have been synthesized by chemical bath deposition technique at different deposition times without using complexing agent, so it is an environmentalist study. Effects of deposition time on structural and morphological properties of ZnO nanoflowers have been investigated by Xray diffraction (XRD) method and Field Emission Scanning Electron Microscope (FESEM). XRD patterns showed that the samples had hexagonal wurtzite structure and polycrystalline nature. Grain sizes, dislocation densities and lattice parameters of the samples have been calculated. According to these results, it has been determined that the ZnO nanoflowers synthesized in very short time like 30 minutes without using complexing agent, showed the best crystallization. When the images of ZnO nanoflowers have been examined, it has seen that the structure is formed continuously and independently from each other by nanorods. It has also seen that these nanorods combine to form a flower-like structure.

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Synthesis and optical properties of chemical bath deposited ZnO thin film

Cited by 48 publications

References 23 publications

Effect of Dip Time on Electrodeposited Zinc Oxide Nanofilm

Effect of Dip Time on Electrodeposited Zinc Oxide Nanofilm

Annealing time effect on the optical properties of Zn(O,OH,S) films onto ZnO seed layer under un-vacuum ambient

Effects of Deposition Time on Structural and Morphological Properties of Synthesized ZnO Nanoflowers Without Using Complexing Agent

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