Tailoring magnetic and photoluminescence properties in ZnS/ZnO core/shell nanostructures through Cr doping

Chawla, Santa; Sharma, Shweta; Kotnala, R. K.

doi:10.1016/j.apsusc.2013.06.144

Cited by 7 publications

(1 citation statement)

References 34 publications

(41 reference statements)

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“…Recently, ZnO/ZnS core-shells have been used as photocatalysts [6], electrochemical devices [7], solar fuels [8,9], and sensors. In order to further boost ZnO/ZnS functional properties, various additives such as Cr [10], Ni [11], and Au [12] have been incorporated into the nanocomposites. In 2021, ZnO/ZnS core-shell nanomaterials were demonstrated for use as UV light/CO gas dual sensors [13].…”

Section: Introductionmentioning

confidence: 99%

Incorporation of Au Nanoparticles on ZnO/ZnS Core Shell Nanostructures for UV Light/Hydrogen Gas Dual Sensing Enhancement

et al. 2021

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ZnO/ZnS nanocomposite-based nanostructures exhibit dual light and gas sensing capabilities. To further boost the light/dual sensing properties, gold nanoparticles (Au NPs) were incorporated into the core-shell structures. Multiple material characterizations revealed that Au NPs were successfully well spread and decorated on ZnO/ZnS nanostructures. Furthermore, our findings show that the addition of Au NPs could enhance both 365 nm UV light sensing and hydrogen gas sensing in terms of light/gas sensitivity and light/gas response time. We postulate that the optimization of gas/light dual sensing capability may result from the induced electric field and inhabitation of electron-hole recombination. Owing to their compact size, simple fabrication, and stable response, ZnO/ZnS/Au NPs-based light/gas dual sensors are promising for future extreme environmental monitoring.

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Section: Introductionmentioning

confidence: 99%

Incorporation of Au Nanoparticles on ZnO/ZnS Core Shell Nanostructures for UV Light/Hydrogen Gas Dual Sensing Enhancement

et al. 2021

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Structure, optical and ferromagnetic properties of Zn1−x−yMnxCryO nanoparticles diluted magnetic semiconductors synthesized by citrate sol–gel method

2021

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Tuning ferromagnetism in zinc oxide nanoparticles by chromium doping

et al. 2015

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Zn 1-x Cr x O nanoparticles with x = 0.0, 0.01, 0.03 and 0.05 were synthesized by the sol-gel technique. Powder X-ray diffraction (XRD) studies reveal that chromium (Cr) incorporates into the ZnO crystal lattice without disturbing the parent hexagonal (wurtzite) structure. Transmission electron microscopy (TEM) measurements show that the average size of these nanoparticles is in the range 15-25 nm. Optical absorption studies show that the band gap of ZnO nanoparticles varies with Cr doping. Photoluminescence (PL) studies depict the presence of defects in Cr-doped nanoparticles. Undoped ZnO exhibits diamagnetic behavior while Cr-doped ZnO samples exhibit weak ferromagnetism to anti-ferromagnetism depending on the Cr content.

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Tailoring magnetic and photoluminescence properties in ZnS/ZnO core/shell nanostructures through Cr doping

Cited by 7 publications

References 34 publications

Incorporation of Au Nanoparticles on ZnO/ZnS Core Shell Nanostructures for UV Light/Hydrogen Gas Dual Sensing Enhancement

Incorporation of Au Nanoparticles on ZnO/ZnS Core Shell Nanostructures for UV Light/Hydrogen Gas Dual Sensing Enhancement

Structure, optical and ferromagnetic properties of Zn1−x−yMnxCryO nanoparticles diluted magnetic semiconductors synthesized by citrate sol–gel method

Tuning ferromagnetism in zinc oxide nanoparticles by chromium doping

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