Enhanced room-temperature ammonia vapor-sensing activity of nebulizer spray pyrolysis fabricated SnO2 thin films: an effect of Er doping

Maheswari, S.; Karunakaran, M.; Hariprasad, K.; Kasirajan, K.; Chandrasekar, L. Bruno; Alshahrani, Thamraa; Shkir, Mohd.; AIFaify, S.

doi:10.1557/s43578-020-00033-0

Cited by 12 publications

(2 citation statements)

References 57 publications

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“…Where, λ is the X-ray wavelength, β is the full-width at half-maximum of the peak and θ is the reflection angle. Dislocation density (δ) and strain (ε) for (111) plane was evaluated using the relations [40,41].…”

Section: X-ray Diffraction Analysismentioning

confidence: 99%

Structural, Morphological and Optical Properties of Perfume Atomizer Spray Pyrolysis CdO Thin Films: Effect of Solution Volume

Kasirajan¹,

Devi²,

Murugesan³

et al. 2022

Recent Perspectives in Pyrolysis Research

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CdO films have been deposited on glass substrates with different solution volume (30, 40 and 50 mL) at 200°C using perfume atomizers spray pyrolysis method. X-ray diffraction studies shows that the prepared thin film had cubic and polycrystalline nature. Scanning electron microscope shows the influence of solution volume on surface morphology of the CdO thin film. Optical studies show that in these films the electronic transition is of the direct transition type. The optical energy gap for the films of as deposited are vary from 2.12 to 2.00 eV with solution volume. Photoluminescence results analysis confirmed that the dependence of optical energy gap on solution volume. The Hall measurements were carried out and the results were discussed.

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Section: X-ray Diffraction Analysismentioning

confidence: 99%

Structural, Morphological and Optical Properties of Perfume Atomizer Spray Pyrolysis CdO Thin Films: Effect of Solution Volume

Kasirajan¹,

Devi²,

Murugesan³

et al. 2022

Recent Perspectives in Pyrolysis Research

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“…In previous investigations, SnO 2 , as one of the most studied n-type semiconductors, has been extensively used in the field of gas sensor technology because of its advantages to respond to a wide range of gases, as well as high direct band gap (3.6 eV), lower cost, high conductivity, and corrosion resistance. − There have been numerous instances of SnO 2 -based materials being used for detecting H 2 S. For example, Phuoc et al prepared a gas sensor utilizing porous SnO 2 nanofibers, which exhibited outstanding selectivity and a low detection limit of 1.6 ppb for H 2 S at an optimal temperature of 350 °C . Deng and Gao synthesized mesoporous SnO 2 blooming flower-like architecture assembled from single crystal nanorods using a Coca-Cola solvothermal method, achieving a response value of 118.4 for 10 ppm of H 2 S at 170 °C .…”

Section: Introductionmentioning

confidence: 99%

3D Porous MXene Nanosheet/SnO₂ Nanoparticle Composites for H₂S Gas Sensing

Tang,

Wang,

et al. 2024

ACS Appl. Nano Mater.

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Due to the large band gap, most metal oxide semiconductor (MOS)-based gas sensors operate at high temperatures, which greatly limits their performance for gas sensing. In this work, we reported the successful synthesis of nanocomposites consisting of porous MXene nanosheets formed by the sublimation of sulfur and SnO 2 nanoparticles (S-PM/SnO 2 ). To prevent the restacking of MXene flakes under van der Waals force, a sacrificial S-template method was employed to transform MXene into a three-dimensional (3D) structure. The presence of MXene lowers the operating temperature. With a high response (∼30.6 − 10 ppm of H 2 S), rapid response speed (∼16.6 s − 50 ppm of H 2 S), high sensitivity (∼3.12 ppm −1 ), low detection limits (distinct response to 100 ppb H 2 S), and good selectivity at 100 °C, the sensor based on the optimal sample of S-PM/SnO 2 -6 demonstrates excellent H 2 S sensing performance. The improvement in H 2 S gas-sensing capacity can be attributed to the development of heterojunctions at the interface of porous MXene nanosheets (S-PM) and SnO 2 nanoparticles (NPs). This leads to an enlarged surface depletion region and an elevated potential barrier, which significantly amplifies the range of resistance variation. These results suggest that S-PM/SnO 2 nanocomposite has promising prospects in the realm of low-temperature and highly sensitive H 2 S detection.

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Assessing the key parameters for efficient sensitized infrared emission from erbium-doped SnO2 films

Xu,

Hou,

Piao

et al. 2024

Ceramics International

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Enhanced room-temperature ammonia vapor-sensing activity of nebulizer spray pyrolysis fabricated SnO2 thin films: an effect of Er doping

Cited by 12 publications

References 57 publications

Structural, Morphological and Optical Properties of Perfume Atomizer Spray Pyrolysis CdO Thin Films: Effect of Solution Volume

Structural, Morphological and Optical Properties of Perfume Atomizer Spray Pyrolysis CdO Thin Films: Effect of Solution Volume

3D Porous MXene Nanosheet/SnO₂ Nanoparticle Composites for H₂S Gas Sensing

Assessing the key parameters for efficient sensitized infrared emission from erbium-doped SnO2 films

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Enhanced room-temperature ammonia vapor-sensing activity of nebulizer spray pyrolysis fabricated SnO2 thin films: an effect of Er doping

Cited by 12 publications

References 57 publications

Structural, Morphological and Optical Properties of Perfume Atomizer Spray Pyrolysis CdO Thin Films: Effect of Solution Volume

Structural, Morphological and Optical Properties of Perfume Atomizer Spray Pyrolysis CdO Thin Films: Effect of Solution Volume

3D Porous MXene Nanosheet/SnO2 Nanoparticle Composites for H2S Gas Sensing

Assessing the key parameters for efficient sensitized infrared emission from erbium-doped SnO2 films

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3D Porous MXene Nanosheet/SnO₂ Nanoparticle Composites for H₂S Gas Sensing