Synthesis and characterization of ZnSe nanorods by coprecipitation method

Gupta, Prerna; Patel, Pushpanjali; Sujata, KM; Solanki, Rekha Garg

doi:10.1016/j.matpr.2022.05.411

Cited by 5 publications

(4 citation statements)

References 14 publications

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“…Debye Scherrer’s formula of eq 1 was used to calculate crystallite size from the full width at half maximum (FWHM) of the intense peak corresponding to (111) reflections of XRD patterns. 30 , 31 where D is the crystallite size, λ is the X-ray wavelength (λ = 1.5406 Å), β is the FWHM, and θ is Bragg’s angle corresponding to the reflections.…”

Section: Resultsmentioning

confidence: 99%

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Enhanced Antibacterial and Photoluminescence Activities of ZnSe Nanostructures

et al. 2023

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Microorganisms create various health issues; semiconductor nanostructures have raised interest because of antimicrobial properties for suppressing microbial growth. Herein, we report the synthesis of ZnSe nanostructures (NSs) using a green coprecipitation method, and the assynthesized samples were annealed at 100, 150, and 200 °C temperatures. The synthesized samples were analyzed for structural, morphological, optical, and antibacterial properties. The growth of nanorods was confirmed by TEM micrographs and that of nanoparticles by FESEM and TEM micrographs. The cubic zinc blender phase of samples was confirmed by XRD. The high-intensity electron−phonon (e−ph) interactions and LO modes were confirmed by the Raman spectra. The UV−visible absorption spectra predicted the blue shift in optical band gaps of ZnSe NSs from their bulk counterparts. The PL spectra and associated CIE diagram indicated that the as-synthesized and annealed NSs produce blue color. The investigated antimicrobial activity against Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus implies the superior biological activity of the as-synthesized and annealed samples at 200 °C. The annealing enhances photoluminescence and antimicrobial activities of ZnSe NSs. The enhanced luminscence properties of ZnSe NSs make them suitable for preparing more efficient blue LEDs and lasers for medical applications. The as-synthesized and annealed ZnSe NSs are found effective against the growth of microorganisms, and sustaining this tendency for 1 week provides a strong basis for the development of new drugs against bacterial infections for supporting the pharmaceutical industry.

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Section: Resultsmentioning

confidence: 99%

“…29 Debye Scherrer's formula of eq 1 was used to calculate crystallite size from the full width at half maximum (FWHM) of the intense peak corresponding to (111) reflections of XRD patterns. 30,31 = D 0.9 cos…”

Section: Xrd Analysismentioning

confidence: 99%

Enhanced Antibacterial and Photoluminescence Activities of ZnSe Nanostructures

et al. 2023

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“…The values of crystallite sizes (D), Dislocation density (δ), Microstrain (ε) and inter-planner spacing (d) for Sr 1−x Al 2 O 4 :Eu x (x = 0.00, 0.01, 0.03, 0.05, 0.07, and 0.09) phosphor (SAE phosphor) are given in the Table 3 17 , 20 – 22 . where D is the crystallite size, n equates to unity, resulting in the lowest possible dislocation density, λ is the X-beam wavelength, θ is the Bragg's diffraction angle, and β is the full width at half maxima (FWHM), expressed in radians 23 .…”

Section: Resultsmentioning

confidence: 99%

“…(3) www.nature.com/scientificreports/ where D is the crystallite size, n equates to unity, resulting in the lowest possible dislocation density, λ is the X-beam wavelength, θ is the Bragg's diffraction angle, and β is the full width at half maxima (FWHM), expressed in radians 23 .…”

Section: Rietveld Refinement Analysismentioning

confidence: 99%

Investigation of structural, optical, morphological, photoluminescence and antimicrobial properties of SrAl2O4:Eu2+ nanophosphor by using urea fuel combustion method

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Kurmi

Verma

2023

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In the present study, the Sr1−xAl2O4:Eux (x = 0.00, 0.01, 0.03, 0.05, 0.07, and 0.09) phosphor were synthesized by urea fuel combustion method at 580 °C temperature with very high brightness and long after glow. The structural studies carried out using XRD technique shows that the sample is single phased in nature and it gets crystallized into monoclinic phase with standard JCPDS 34-0379 card. The oxide formation was examined using FTIR technique. UV–Visible spectroscopy has been used to study the optical band gap of material, it’s value in the current case, Sr1−xAl2O4:Eux (x = 0.05) is 3.78 eV. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM), confirm the formation of nano particle, with average particle size around 6–25 nm. The elemental composition was confirmed by using Energy Dispersive X-ray (EDX) technique. The photo-luminescence study revealed that it gives broad emission spectra using excitation wavelength λex = 365 nm. It is observed that the Sr1−xAl2O4:Eux (x = 0.05) phosphor give maximum emission intensity and it can be regulated as green (0.23, 0.49) emission with the colour temperature 3224 K, CRI 78, and colour purity 60.69%. The spectra are intense and lie in the visible range. The green lights can regulate the circadian rhythm through melatonin, and it is also suitable for green LED and other optoelectronic devices. The Sr1−xAl2O4:Eux (x = 0.00 and 0.05) phosphor behaves like eco-materials, because nano particles of Sr1−xAl2O4:Eux (x = 0.05) does not show antimicrobial activity.

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