Zinc oxide-based light-emitting diodes and lasers

Jangir, Lokesh Kumar; Kumari, Yogita; Kumari, Poonam

doi:10.1016/b978-0-12-818900-9.00010-3

Cited by 7 publications

(1 citation statement)

References 147 publications

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“…metal oxides have been utilized for gas sensor applications. The fast response times, great sensitivity to target gases, small dimensions, mobility, economical manufacturing, simplicity of use, and real-time detection are the benefits of MOS-based gas sensors. − Out of all metal oxides, ZnO is known as the ideal candidate for gas sensing due to its exceptional physicochemical features. − ZnO is a promising material because of its wide direct band gap of ∼3.37 eV, strong carrier mobility (400 cm 2 V –1 s –1 ), and high exciton binding energy (60 meV). − ZnO also has the benefits of being biocompatible, chemically stable, environment friendly, and having a low cost of synthesis, among others. − Despite these, ZnO-based gas sensors suffer from poor selectivity, low sensitivity, and high working temperature. In order to resolve such issues, certain techniques can be utilized to enhance the gas sensing performance of ZnO including nanostructure formation, functionalization of nanoparticles (NPs), heterostructure and composite formation, etc. − …”

Section: Introductionmentioning

confidence: 99%

ZnO Nanosheets Decorated with Ag-Pt Nanoparticles for Selective Detection of Ethanol

Kumar,

Lawaniya,

Nelamarri

et al. 2023

ACS Appl. Nano Mater.

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Zinc oxide nanosheets were synthesized using a facile solvothermal route and decorated with presynthesized Ag-Pt nanoparticles to design a selective ethanol gas sensor working at a relatively lower temperature. The produced nanostructures were engaged via several characterization techniques such as field emission scanning electron microscopy, transmission electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy to investigate the topographical and structural properties as well as elemental composition. Then, the nanostructures were utilized to fabricate gas sensor devices and deployed to estimate ethanol gas sensing capabilities to optimize the synergistic effect of Ag and Pt concentration in Ag–Pt bimetallic nanoparticles. The selective response was witnessed by the 1:1 Ag:Pt-ZnO sample at a temperature of 175 °C toward ethanol gas with good stability and reproducibility. Furthermore, the enhancement in gas sensing performance was investigated and found that the optimal amount of Ag and Pt can provide a synergistic effect to zinc oxide for the improvement of highly selective real-time detection of ethanol gas.

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Section: Introductionmentioning

confidence: 99%

ZnO Nanosheets Decorated with Ag-Pt Nanoparticles for Selective Detection of Ethanol

Kumar,

Lawaniya,

Nelamarri

et al. 2023

ACS Appl. Nano Mater.

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Low‐Temperature Solvothermal Synthesis of Triangular, Spherical, and Urchin‐Like ZnO

Kapusuz Yavuz,

El Accen,

Bedir

2024

ChemistrySelect

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This study explores the synthesis and characterization of ZnO particles with varying morphologies—triangular, spherical, and urchin‐like—that were produced through a simple, solvothermal process. The morphology, surface area, and photocatalytic performance of the ZnO particles could be customized by meticulously regulating the synthesis parameters, particularly the temperature and solvent. The findings indicated that all samples crystallized as pure wurtzite ZnO with a uniform crystallite size of 34.7 ± 1.8 nm and energy band gap of 3.29 eV. The spherical E‐200 particles, which exhibit the highest photocatalytic efficiency, achieved an average of 25.27 ± 5.88% methylene blue (MB) degradation after 24 h. These particles were distinguished by a significant surface area of 30.56 m2/g and an average pore size of 45 nm. Furthermore, all ZnO samples exhibited a significant adsorption capacity (≤ 20%) for MB under dark condition, underscoring their potential as effective adsorbents for environmental pollutants. These results emphasize the significance of precise synthesis and morphology control in the optimization of functional properties of ZnO for environmental remediation applications.

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Low temperature (002)-oriented zinc oxide films prepared using ozone-based spatial atomic layer deposition

Wu,

Hsu,

Yue

et al. 2024

Ceramics International

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Zinc oxide-based light-emitting diodes and lasers

Cited by 7 publications

References 147 publications

ZnO Nanosheets Decorated with Ag-Pt Nanoparticles for Selective Detection of Ethanol

ZnO Nanosheets Decorated with Ag-Pt Nanoparticles for Selective Detection of Ethanol

Low‐Temperature Solvothermal Synthesis of Triangular, Spherical, and Urchin‐Like ZnO

Low temperature (002)-oriented zinc oxide films prepared using ozone-based spatial atomic layer deposition

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