Mechanoluminescence of (ZnS)1−x(MnTe)x nanophosphors excited by impact of a load

Pateria, Deepti; Baghel, R.N.; Bisen, D. P.; Jha, Piyush; Chandra, B. P.

doi:10.1016/j.jlumin.2015.05.040

Cited by 14 publications

(7 citation statements)

References 45 publications

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“…As the impact height of load increased the value of impact velocity (υ 0 ) also increased, according to the formula υ 0 (= √2gh, where g is the acceleration due to gravity and h is impact height of the load. As ML intensity is directly proportional to the impact velocity , so ML intensity increased with impact height of the load.…”

Section: Resultsmentioning

confidence: 96%

Investigations on luminescence behaviour of Ce‐activated BaMgAl₁₀O₁₇ phosphor

2016

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The present paper describes the synthesis of cerium-doped barium magnesium aluminate phosphor by combustion method. The crystal structure of synthesized phosphor belongs to the P6 /mmc space group and is related to the β-alumina structure. The photoluminescence emission spectra exhibited a broad peak centered at 440 nm showing the Ce emission. The thermoluminescence properties of phosphors under ultraviolet irradiation were investigated. The activation energy was calculated by Chen's empirical method. Fracto-mechanoluminescence properties were also investigated. The phosphor showed mechanoluminescence (ML) properties without irradiation and the ML intensity increased linearly with the impact height of the moving piston. Therefore this compound may have a use as a damage sensor. Copyright © 2016 John Wiley & Sons, Ltd.

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Section: Resultsmentioning

confidence: 96%

Investigations on luminescence behaviour of Ce‐activated BaMgAl₁₀O₁₇ phosphor

2016

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“…85,86 However, it does not explain the self-reproducible ML after annealing the material between 80 and 300 °C. 87–89 There are, however, conflicting results found in the literature, Pateria et al 88 reported that all the traps are recombined during annealing in the dark at 350 °C for 30 min in their ZnS 1− x (MnTe) x material, and no ML was observed. On the contrary, Chandra et al have suggested that the self-reproducible mechanoluminescence in ZnS:Cu and ZnS:Mn 2+ arises as a contribution of drift current on the trap-recharging and could be attributed to the higher conductivity of semiconductors as compared to dielectric materials.…”

Section: Resultsmentioning

confidence: 99%

Mechanoluminescence, thermoluminescence, optically stimulated luminescence and photoluminescence in SrAl₂O₄:Eu micro- and nanophosphors: effect of particle size and annealing in different atmospheres

Sharma,

Sahare

2023

RSC Adv.

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“…The time dependence of the ML intensity can be expressed as :

I = η_{0} R = \frac{η_{0} β_{q} italicρb' italicαV ν_{0}}{H ((),, β_{q} - γ)} ([],, exp ((),, - γt)) - exp ((),, - β_{q} t) true]

…”

Section: Discussionmentioning

confidence: 99%

Mechanoluminescence of SrAl₂O₄:Eu,Dy nanophosphors induced by low impact velocity

Jha

Chandra

2016

Luminescence

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The present paper reports the impulsive excitation of mechanoluminescence (ML) in Sr Al O :Eu ,Dy nanophosphors prepared using a combustion technique. The phosphors are characterized using X-ray powder diffraction (XRD), high-resolution transmission electron microscopy (HRTEM) and photoluminescence (PL). The XRD results show that the samples exhibit a monoclinic α-phase in the crystal structure. The space group of SrAl O :Eu,Dy nanophosphors is monoclinic P2 . The PL and ML spectra of SrAl O :Eu,Dy nanophosphors are excited using light with a wavelength of 365 nm and emission is found at 516 nm. The prepared nanophosphors exhibits an intense ML that can be seen in daylight with the naked eye. When a sample powder is deformed impulsively by the impact of a moving piston, the ML intensity initially increases linearly with time, attains a peak value, I , at time t , and then decreases with time. The peak ML intensity, I , and total ML intensity, I , increase linearly with applied pressure and impact velocity. The ML intensity decreases with successive impacts of load onto the phosphors, and the diminished ML intensity can be approximately recovered by UV irradiation. The activation energy using thermoluminescence is found to be 0.57 eV for SrAl O :Eu,Dy nanophosphors. Copyright © 2016 John Wiley & Sons, Ltd.

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Mechanoluminescence of (ZnS)1−x(MnTe)x nanophosphors excited by impact of a load

Cited by 14 publications

References 45 publications

Investigations on luminescence behaviour of Ce‐activated BaMgAl₁₀O₁₇ phosphor

Investigations on luminescence behaviour of Ce‐activated BaMgAl₁₀O₁₇ phosphor

Mechanoluminescence, thermoluminescence, optically stimulated luminescence and photoluminescence in SrAl₂O₄:Eu micro- and nanophosphors: effect of particle size and annealing in different atmospheres

Mechanoluminescence of SrAl₂O₄:Eu,Dy nanophosphors induced by low impact velocity

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Mechanoluminescence of (ZnS)1−x(MnTe)x nanophosphors excited by impact of a load

Cited by 14 publications

References 45 publications

Investigations on luminescence behaviour of Ce‐activated BaMgAl10O17 phosphor

Investigations on luminescence behaviour of Ce‐activated BaMgAl10O17 phosphor

Mechanoluminescence, thermoluminescence, optically stimulated luminescence and photoluminescence in SrAl2O4:Eu micro- and nanophosphors: effect of particle size and annealing in different atmospheres

Mechanoluminescence of SrAl2O4:Eu,Dy nanophosphors induced by low impact velocity

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Investigations on luminescence behaviour of Ce‐activated BaMgAl₁₀O₁₇ phosphor

Investigations on luminescence behaviour of Ce‐activated BaMgAl₁₀O₁₇ phosphor

Mechanoluminescence, thermoluminescence, optically stimulated luminescence and photoluminescence in SrAl₂O₄:Eu micro- and nanophosphors: effect of particle size and annealing in different atmospheres

Mechanoluminescence of SrAl₂O₄:Eu,Dy nanophosphors induced by low impact velocity