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Kanjilal, A.; Gemming, Sibylle; Rebohle, L.; Muecklich, A.; Gemming, Thomas; Voelskow, M.; Skorupa, W.; Helm, M.

doi:10.1103/physrevb.83.113302

Cited by 3 publications

(1 citation statement)

References 26 publications

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“…The interplanar spacing (d) has been The Z contrast intensity of the samples was also investigated by high-angle annular dark-field (HAADF) imaging as the contrast depends on the weighted sum of Z 1.7 . 54 The HAADF images of ZS-7A, ZS-9A, and ZS-12A are shown at the extreme left of Figure 7a−c, respectively. Here, the white region signifies the highest Z value.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Tailoring Structural, Chemical, and Photocatalytic Properties of ZnO@β-SiC Composites: The Effect of Annealing Temperature and Environment

et al. 2023

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For achieving unified functionalities of rare-earth free materials, the development of innovative zinc oxide and β-silicon carbide (ZnO@β-SiC) composites by a solid-state reaction method is presented. The evolution of zinc silicate (Zn2SiO4) is evidenced by X-ray diffraction when annealed in air beyond 700 °C. Detailed X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy analyses reveal the involvement of silicon dioxide in forming Zn2SiO4. Transmission electron microscopy and the associated energy-dispersive X-ray spectroscopy elucidate the evolution of the zinc silicate phase at the ZnO/β-SiC interface, though it can be averted by vacuum annealing. These results manifest the importance of air in oxidizing SiC before a chemical reaction with ZnO from 700 °C. Finally, ZnO@β-SiC composites are found to be promising for methylene blue dye degradation under ultraviolet radiation, but the annealing above 700 °C is detrimental due to the evolution of a potential barrier in the presence of Zn2SiO4 at the ZnO/β-SiC interface.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Tailoring Structural, Chemical, and Photocatalytic Properties of ZnO@β-SiC Composites: The Effect of Annealing Temperature and Environment

et al. 2023

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Probing the impact of surface reactivity on charge transport in dimensional phase changed tungsten films

Chattaraj

Khan

Walczak

et al. 2019

J Mater Sci: Mater Electron

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Self-decorated Au nanoparticles on antireflective Si pyramids with improved hydrophobicity

Saini

Barman

Kumar

et al. 2016

Journal of Applied Physics

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Post-deposition annealing mediated evolution of self-decorated Au nanoparticles (NPs) on chemically etched Si pyramids is presented. A distinct transformation of Si surfaces from hydrophilic to hydrophobic is initially found after chemical texturing, showing an increase in contact angle (CA) from 58° to 98° (±1°). Further improvement of hydrophobicity with CA up to ∼118° has been established after annealing a 10 nm thick Au-coated Si pyramids at 400 °C that led to the formation of Au NPs on Si facets along with self-ordering at the pyramid edges. Detailed x-ray diffraction studies suggest the evolution of crystalline Au NPs on strained Si facets. Microstructural studies, however, indicate no mixing of Au and Si atoms at the Au/Si interfaces, instead of forming Au nanocrystals at 400 °C. The improved hydrophobicity of Si pyramids, even with Au NPs can be explained in the light of a decrease in solid fractional surface area according to Wenzel's model. Moreover, a sharp drop in specular reflectance from Si pyramids in the range of 300–800 nm, especially in the ultraviolet region up to ∼0.4% is recorded in the presence of Au NPs by ultraviolet-visible spectroscopy, reflecting the possible use in photovoltaic devices with improved antireflection property.

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Microstructure analysis at the interface of Er decorated Ge nanocrystals in SiO2

Cited by 3 publications

References 26 publications

Tailoring Structural, Chemical, and Photocatalytic Properties of ZnO@β-SiC Composites: The Effect of Annealing Temperature and Environment

Tailoring Structural, Chemical, and Photocatalytic Properties of ZnO@β-SiC Composites: The Effect of Annealing Temperature and Environment

Probing the impact of surface reactivity on charge transport in dimensional phase changed tungsten films

Self-decorated Au nanoparticles on antireflective Si pyramids with improved hydrophobicity

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