Luminescence and photodetection characteristics of rare earth–doped zinc oxide nanostructures

Kumar, Rajesh; Mishra, Sheo K.

doi:10.1016/b978-0-323-89956-7.00003-6

Cited by 3 publications

(1 citation statement)

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“…Doping ZnS with Pr improves its optoelectronic capabilities, making it suitable for use in sensors and photodetectors [17,37]. We may employ Nd doped Zn based nanomaterials as a dominant luminescent material in luminescence performances, and it improves photochemical properties as well as light emission electronics [38]. Dy doped Zn based nanomaterials exhibit a high efficiency photocatalytic activity, making them suitable for the gas sensor applications [38].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of luminescent and photocatalytic performance of hydrothermally synthesized ZnS NPs using Ce as defect regulator

Jubeer,

Manthrammel,

Subha

et al. 2024

Phys. Scr.

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Using the hydrothermal technique, we synthesised ZnS and Ce-doped ZnS nanoparticles with various doping concentrations (0.5, 1, 2.5, and 5 wt.%). X-ray diffraction (XRD) analysis indicated that pure ZnS nanoparticles exhibited a cubic phase, but when doped with Ce, the phase changed to wurtzite. The phase transition in the doped ZnS nanoparticles was also verified by Raman spectroscopy. In the photoluminescence (PL) spectra, however, no transitions matching to the dopant were identified, the overall luminous behaviour of the nanoparticles may still be influenced by the luminescence of the host material. Morphological examinations were carried out using scanning electron microscopy (SEM) and transmission electron microscopy (TEM), which revealed information about the size, shape, and distribution of the nanoparticles. The presence of Ce was further confirmed by Energy-dispersive X-ray spectroscopy (EDAX). The visible light photocatalytic activity of the nanoparticles was examined, and it was observed that the photocatalytic efficiency initially increased with doping concentration and then decreased. For 99% degradation efficiency, a doping concentration of 1% was determined to be optimal. The success of the synthesis and characterisation of Ce-doped ZnS nanoparticles is highlighted in this work, which demonstrates their phase change, shape, elemental composition, and photocatalytic activity. the findings give important insights into the possible uses of these nanoparticles in photocatalysis and other domains like optoelectronics.

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