SILAR synthesis of SnO2–ZnO nanocomposite sensor for selective ethanol gas

Pakhare, K. S.; Sargar, Balasaheb M.; Potdar, Swapnil S.; Patil, Umakant M.; Mane, R D

doi:10.1007/s12034-021-02649-2

Cited by 10 publications

(4 citation statements)

References 27 publications

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“…However, the SEM images of ZnO: SnO2 (1 and 5 % wt) show a porous agglomerated nanoparticle shows pure ZnO. Such morphologies are beneficial because they produce an electron-conducting channel through interconnected nanoparticles [19,20,21]. Figures 4(e, f, and g) show the ZnO thin films as pure and doped with SnO2 (0, 1, & 5 % wt) analysed by using EDX.…”

Section: The Fe-sem Resultsmentioning

confidence: 99%

Studying the Structural, Optical and Electrical Properties of ZnO: SnO2 Thin Films as an Application of a Gas Sensor Using Vacuum Thermal Evaporation Technique

A. Hussain,

N. Abdullah

2023

Tikrit J. Pure Sci.

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In this work, thermal evaporation in vacuum technique was used to prepare the ZnO thin films as pure and doped with SnO2 NPs on glass substrates. The XRD pattern showed the hexagonal structure of ZnO with (002) preferred orientation. The EDX technique was used to investigate the contents of the film elements prepared which consisted of Zn, Sn and O. The concentration of Zn, O and Sn in the nanostructure films was different for all doping ratios. Thickness and morphology surface of the films were calculated from cross section of the surface films (~144 nm) using scanning electron microscopy images. The FE-SEM images confirmed the ZnO nanostructures and modifications of the morphology when adding SnO2. The pure film deposited was dense and structured; while ZnO: SnO2 (1,5 % wt) was a nanostructure. The optical band gap and Transmittance increased with the increase in the doping ratio of SnO2, while the absorption spectrum decreased for the prepared thin films. The prepared films showed different responses to the gas sensing at two different operating temperatures (100, 200 ºC) and the doping ratio increased the sensor value of the gas at an optimum temperature of (200 ºC).

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Section: The Fe-sem Resultsmentioning

confidence: 99%

Studying the Structural, Optical and Electrical Properties of ZnO: SnO2 Thin Films as an Application of a Gas Sensor Using Vacuum Thermal Evaporation Technique

A. Hussain,

N. Abdullah

2023

Tikrit J. Pure Sci.

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“…The crystallite size of samples TO, TZO1, TZO2, and TZO3 was estimated using the Scherrer formula (1) [44].…”

Section: X-ray Diffraction Studymentioning

confidence: 99%

Environmentally benign synthesis of TiO₂-ZnO nanocomposite for efficient dye-sensitized solar cell

Thate¹,

Pakhare²,

Patil

et al. 2023

Mater. Res. Express

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This work presents betanin dye-loaded TiO2-ZnO thin film solar cells for solar energy harvesting. The TiO2-ZnO nanocomposite was prepared by the one-step microwave-assisted technique. Structural studies exhibit mixed phases of rutile and wurtzite structure of TiO2 and ZnO respectively. The morphological investigations of deposited TiO2-ZnO nanocomposite showed interconnected many-fold nanoflakes morphology. EDS confirms the formation of stoichiometric TiO2-ZnO nanocomposite films. An optical study demonstrates electronic transition with a bandgap energy range of 2.72 to 2.94eV. Photovoltaic performance shows photocurrent from 1.62 to 2.73 mA/cm2 with the photovoltage of 659-795 mV in the range with a 3.25 % photo-conversion efficiency for the sample of TZO3 dye-sensitized solar cell (DSSCs).

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“…Also, Figure 1(d) shows that every bud that exists in the cauliflower-like structure is made up of multiple tiny NPs. However, such topologies are favourable because they result in the creation of an electron conducting channel between connected nanoparticles [11]. Cauliflower's tightly packed microstructure and light dispersion characteristics may contribute to its strong photocatalytic activity [17].…”

Section: Morphology and Compositional Explorationmentioning

confidence: 99%

“…The reported cauliflower-like shaped SnO 2 has been applied in various fields such as anode substances in Li-ion batteries [7], optical properties [8] and gas sensing applications [9]. Cauliflower-like SnO 2 hollow microspheres are exploited as anodes in quantum dot dye-sensitised solar cells [10], Cauliflower-like SnO 2 -ZnO nanocomposite is utilised as an ethanol gas sensor [11] and cauliflower-like SnO 2 is employed as a microsensor [12]. As anode materials for lithium-ion batteries, Sn/SnO 2 microcube powders and amorphous SnO 2 nanoparticles comprising carbon have been developed [13,14].…”

Section: Introductionmentioning

confidence: 99%

Cauliflower-like strontium-doped SnO₂ nanoparticles for photocatalytic degradation

Vallimeena

Helina

2023

Materials Science and Technology

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Three-dimensional (3D) cauliflower-shaped Strontium (Sr)-doped SnO2 nanoparticles were synthesised at ambient temperature through a simple co-precipitation technique. The 3D cauliflower-shaped 7 wt-% Sr-doped SnO2 nanoparticles increase light harvesting features and also promote electron transport across grain boundaries. 3D cauliflower-shaped Sr-doped SnO2 nanoparticles offer low charge transfer resistance, which is validated by the electrochemical impedance spectroscopy spectrum. XRD studies of SnO2 and Sr-doped SnO2 have revealed a tetragonal structure, and PL spectra corroborate the greater charge splitting. This study may be the first ever report on the 3D microstructure of cauliflower-shaped 7 wt-% Sr-doped SnO2 nanoparticles that demonstrated higher photocatalytic activity under visible-light for MB dye solution.

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SILAR synthesis of SnO2–ZnO nanocomposite sensor for selective ethanol gas

Cited by 10 publications

References 27 publications

Studying the Structural, Optical and Electrical Properties of ZnO: SnO2 Thin Films as an Application of a Gas Sensor Using Vacuum Thermal Evaporation Technique

Studying the Structural, Optical and Electrical Properties of ZnO: SnO2 Thin Films as an Application of a Gas Sensor Using Vacuum Thermal Evaporation Technique

Environmentally benign synthesis of TiO₂-ZnO nanocomposite for efficient dye-sensitized solar cell

Cauliflower-like strontium-doped SnO₂ nanoparticles for photocatalytic degradation

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SILAR synthesis of SnO2–ZnO nanocomposite sensor for selective ethanol gas

Cited by 10 publications

References 27 publications

Studying the Structural, Optical and Electrical Properties of ZnO: SnO2 Thin Films as an Application of a Gas Sensor Using Vacuum Thermal Evaporation Technique

Studying the Structural, Optical and Electrical Properties of ZnO: SnO2 Thin Films as an Application of a Gas Sensor Using Vacuum Thermal Evaporation Technique

Environmentally benign synthesis of TiO2-ZnO nanocomposite for efficient dye-sensitized solar cell

Cauliflower-like strontium-doped SnO2 nanoparticles for photocatalytic degradation

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Product

Resources

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Environmentally benign synthesis of TiO₂-ZnO nanocomposite for efficient dye-sensitized solar cell

Cauliflower-like strontium-doped SnO₂ nanoparticles for photocatalytic degradation