Seed-layer-free deposition of well-oriented ZnO nanorods thin films by SILAR and their photoelectrochemical studies

Desai, Mangesh A.; Sharma, Vidhika; Prasad, Mohit; Jadkar, Sandesh; Saratale, Ganesh Dattatraya; Sartale, Shrikrishna D.

doi:10.1016/j.ijhydene.2019.09.150

Cited by 44 publications

(18 citation statements)

References 66 publications

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“…In recent study by Abdulrahman et al 18 , efforts were made to create a multifunctional ultraviolet (UV) detector based on ZnO nanorods. Desai et al 19 demonstrated a simple and effective method for growing well-oriented thin films of ZnO nanorods without any help of the seed layer. In the article 20 , authors investigated the wettability of flower-like ZnO films that showed hydrophobic behavior.…”

Section: Introductionmentioning

confidence: 99%

Effect of thickness and reaction media on properties of ZnO thin films by SILAR

Yergaliuly

Soltabayev

Kalybekkyzy

et al. 2022

Sci Rep

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Zinc oxide (ZnO) is one of the most promising metal oxide semiconductor materials, particularly for optical and gas sensing applications. The influence of thickness and solvent on various features of ZnO thin films deposited at ambient temperature and barometric pressure by the sequential ionic layer adsorption and reaction method (SILAR) was carefully studied in this work. Ethanol and distilled water (DW) were alternatively used as a solvent for preparation of ZnO precursor solution. Superficial morphology, crystallite structure, optical and electrical characteristics of the thin films of various thickness are examined applying X-ray diffraction (XRD) system, scanning electron microscopy, the atomic force microscopy, X-ray photoelectron spectroscopy, ultraviolet–visible spectroscopy, photoluminescence spectroscopy, Hall effect measurement analysis and UV response study. XRD analysis confirmed that thin films fabricated using ethanol or DW precursor solvents are hexagonal wurtzite ZnO with a preferred growth orientation (002). Furthermore, it was found that thin films made using ethanol are as highly crystalline as thin films made using DW. ZnO thin films prepared using aqueous solutions possess high optical band gaps. However, films prepared with ethanol solvent have low resistivity (10–2 Ω cm) and high electron mobility (750 cm2/Vs). The ethanol solvent-based SILAR method opens opportunities to synthase high quality ZnO thin films for various potential applications.

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Section: Introductionmentioning

confidence: 99%

Effect of thickness and reaction media on properties of ZnO thin films by SILAR

Yergaliuly

Soltabayev

Kalybekkyzy

et al. 2022

Sci Rep

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“…This demonstrates that growth is anisotropic. The second‐placed (002) plane which presents all the grains are preferentially arranged along the c‐axis is the characteristics feature of ZnO nanorods [36–38] . As supported by the FE‐SEM results, it has been observed that hexagonal ZnO nanorod structures are formed as well as nanoparticles formed by growth in different directions.…”

Section: Resultsmentioning

confidence: 62%

“…The second-placed (002) plane which presents all the grains are preferentially arranged along the c-axis is the characteristics feature of ZnO nanorods. [36][37][38] As supported by the FE-SEM results, it has been observed that hexagonal ZnO nanorod structures are formed as well as nanoparticles formed by growth in different directions. When examined the XRD result of the Ag-doped ZnO-NR sample presented in Figure 3 (c), a notable shift in the 2 theta values of ZnO was not observed.…”

Section: Structural Properties Of Zno-nr and Ag-doped Zno-nr Materialsmentioning

confidence: 67%

Preparation, Characterization and Immobilization of Ag‐Doped ZnO‐Nanorods into Ca and Cu Alginate Beads and Their Application in the Photodegradation of Methylene Blue

Aydın

2021

ChemistrySelect

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The ZnO nanorod (NR) structures used as photocatalyst in the photocatalytic degradation of methylene blue (MB) dye were synthesized by the hydrothermal method and doped with Ag using the chemical precipitation method. The results of Field Emission‐Scanning Electron Microscopes (FE‐SEM) showed that after the heat treatment, ZnO nanoplate structures were broken, leaving only hexagonal ZnO‐NR structures and Ag nanoparticles with a diameter of approximately 92 nm occurred on the ZnO‐NR surface as a result of Ag doping. The results of X‐Ray Diffraction (XRD) revealed that pure hexagonal ZnO crystals and face‐centered cubic Ag structures were present. The data showed that the photodegradation efficiency for 20 mg/L methylene blue (MB) dye without H2O2 reached 98 % at 300th minute and 100 % after 60 minutes in the presence of H2O2. The results showed that the Ag‐Doped ZnO‐NR structures immobilized into Ca and Cu alginate beads provide the high photocatalytic removal efficiency in the presence of H2O2 in a short time.

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“…of the key parameters that controls the surface morphology of the deposited SILAR coatings. [139][140][141][142] Preparation of nanocrystalline TiO 2 films for applications such as photocatalysis, gas sensing, photovoltaics and dye sensitized solar cells have been reported. [143][144][145][146] Similarly to ZnO, TiO 2 has a bandgap in the near UV, and owing to its abundance and non-toxicity, it has ubiquitous applications in industry, including paints, sunscreens and many optical coatings.…”

Section: Binary Oxidesmentioning

confidence: 99%

“…[259] Ag/Ag 2 WO 4 was deposited on ZnO nanorods using AgNO 3 and Na 2 WO 4 as the precursors and the composite material displayed excellent performances in PEC water splitting with 3 mA cm −2 at 1.23 V versus RHE in 0.1 m Na 2 SO 4 electrolyte. [262] Other semiconductor materials like ZnO, [141,211] TiO 2 , [146,147] CdO, [154] and Cu 2 O [132,133,190] were also synthesized from SILAR but their PEC performances are relatively low under visible light because of their wide bandgap.…”

Section: H O 4h 4e Omentioning

confidence: 99%

SILAR Deposition of Metal Oxide Nanostructured Films

Ratnayake

Ren

Colusso

et al. 2021

Small

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Methods for the fabrication of thin films with well controlled structure and properties are of great importance for the development of functional devices for a large range of applications. SILAR, the acronym for Successive Ionic Layer Adsorption and Reaction, is an evolution and combination of two other deposition methods, the Atomic Layer Deposition and Chemical Bath Deposition. Due to a relative simplicity and low cost, this method has gained increasing interest in the scientific community. There are, however, several aspects related to the influence of the many parameters involved, which deserve further deepening. In this review article, the basis of the method, its application to the fabrication of thin films, the importance of experimental parameters, and some recent advances in the application of oxide films are reviewed. At first the fundamental theoretical bases and experimental concepts of SILAR are discussed. Then, the fabrication of chalcogenides and metal oxides is reviewed, with special emphasis to metal oxides, trying to extract general information on the effect of experimental parameters on structural, morphological and functional properties. Finally, recent advances in the application of oxide films prepared by SILAR are described, focusing on supercapacitors, transparent electrodes, solar cells, and photoelectrochemical devices.

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Seed-layer-free deposition of well-oriented ZnO nanorods thin films by SILAR and their photoelectrochemical studies

Cited by 44 publications

References 66 publications

Effect of thickness and reaction media on properties of ZnO thin films by SILAR

Effect of thickness and reaction media on properties of ZnO thin films by SILAR

Preparation, Characterization and Immobilization of Ag‐Doped ZnO‐Nanorods into Ca and Cu Alginate Beads and Their Application in the Photodegradation of Methylene Blue

SILAR Deposition of Metal Oxide Nanostructured Films

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