Introduction to Triboluminescence

Olawale, David; Fontenot, Ross S.; Shohag, Abu; Okoli, Okenwa I.

doi:10.1007/978-3-319-38842-7_1

Cited by 16 publications

(23 citation statements)

References 43 publications

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“…26,27 These processes are inherently responsible for the electroluminescent behavior of triboluminescence and sonotriboluminescence. 3,4 Indeed, an excited *Tb 3+ ion being an emitter of the solid-state STL can be generated in a crystal directly under the effect of electric fields (separation and recombination processes of charges occupying the excited states of luminescence centers) and due to the bombardment of the crystal surface with discharged electrons. The discharges also form plasma channels in the liquid, from which electrons enter the bulk of the liquid base of the suspension.…”

Section: Resultsmentioning

confidence: 99%

“…In this case, the light emission is also produced which intensity is much higher than that of sonoluminescence of liquids and solutions. 2 By analogy with the glow created during the destruction of solids in the atmosphere (triboluminescence), 3 it was called “sonotriboluminescence” (STL). 4 Accordingly, the type of sonolysis that leads to this effect can be called “sonotribolysis.” The STL depends on composition of suspension, the processes occurring in it, and can be used to analyze and to control sonotribolysis as in the case of sonoluminescence.…”

Section: Introductionmentioning

confidence: 99%

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Luminescence of Aromatic Compounds During Ultrasonic Treatment of Tb₂(SO₄)₃ Suspension in Commercial Gasoline

Tukhbatullin

Шарипов

2022

Appl Spectrosc

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The spectral-luminescent properties of a suspension of terbium sulfate in commercial gasoline under sonication are studied. The following emitters are identified from the luminescence spectrum: *Tb<sup>3+</sup> ions in crystals; electronically excited molecules of arenes (benzene, toluene and xylenes) and polycyclic aromatic hydrocarbons (PAHs) in the liquid phase of the suspension. The study of sonotriboluminescence in gasoline–heptane and heptane–xylene–PAH synthetic mixtures shows for the first time that there is an effective luminescence activator in gasoline, i.e. terphenyl molecules. It has been established that these molecules have the highest luminescence yield among all sonotriboluminescence emitters found. This is provided by the transfer of the excitation energy from monocyclic arene molecules primarily excited during the sonication. In this case, the primary excitation of aromatic hydrocarbon molecules in commercial gasoline during the ultrasonic treatment of suspensions occurs under the impact of charged particles/electrons generated during electrical discharges initiated by collision and destruction of microcrystals. This process is similar to radioluminescence excitation in liquid scintillators which can be considered commercial gasoline. The formation of *Tb<sup>3+</sup> is due to separation and recombination processes of charges that populate the excited states of luminescence centers in microcrystals electrified during tribodestruction under sonication of the suspension.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Luminescence of Aromatic Compounds During Ultrasonic Treatment of Tb₂(SO₄)₃ Suspension in Commercial Gasoline

Tukhbatullin

Шарипов

2022

Appl Spectrosc

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“… TL of EuD 4 TEA complex precipitated in synthesis with Eu(NO 3 ) 3 (black line) or with EuCl 3 (red line) [ 30 ]. …”

Section: Figurementioning

confidence: 99%

Triboluminescence Phenomenon Based on the Metal Complex Compounds—A Short Review

et al. 2021

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Triboluminescence (TL) is a phenomenon of light emission resulting from the mechanical force applied to a substance. Although TL has been observed for many ages, the radiation mechanism is still under investigation. One of the exemplary compounds which possesses triboluminescent properties are copper(I) thiocyanate bipyridine triphenylphosphine complex [Cu(NCS)(py)2(PPh3)], europium tetrakis dibenzoylmethide triethylammonium EuD4TEA, tris(bipyridine)ruthenium(II) chloride [Ru(bpy)3]Cl2, and bis(triphenylphosphine oxide)manganese(II) bromide Mn(Ph3PO)2Br2. Due to the effortless synthesis route and distinct photo- and triboluminescent properties, these compounds may be useful model substances for the research on the triboluminescence mechanism. The advance of TL studies may lead to the development of a new group of sensors based on force-responsive (mechanical stimuli) materials. This review constitutes a comprehensive theoretical study containing available information about the coordination of metal complex synthesis methodologies with their physical, chemical, and spectroscopic properties.

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“…On the other hand, the organic europium dibenzoylmethide triethylammonium (EuD4TEA) doped with dimethyl methylphosphonate (DMMP; has the largest tested TL yield among all the tested materials (Hollerman et al, 2012). However, it appears to be more easily damaged than inorganic ZnS:Mn (Olawale et al, 2016a). Thus, it is concluded that ZnS:Mn has the most potential for TL-based sensor systems and it was used as the TL material for this research.…”

Section: Introductionmentioning

confidence: 99%

Development of friction-induced triboluminescent sensor for load monitoring

Shohag

Jiang

Hammel

et al. 2017

Journal of Intelligent Material Systems and Structures

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Real-time load monitoring of critical civil and mechanical structures especially dynamic structures such as wind turbine blades is imperative for longer service life. This article proposed a novel sensor system based on the proprietary in situ triboluminescent optical fiber (ITOF) sensor for dynamic load monitoring. The new ITOF sensor patch consists of an ITOF sensor network with micro-exciters integrated within a polymer matrix. The sensor patch was subjected to repeated flexural loading and produced triboluminescent emissions due to the friction between micro-exciters and ITOF sensors corresponding to each loading cycle. The friction-induced triboluminescent intensity directly depends on the loading rate, the coefficient of friction, and the applied load on patch. In general, the triboluminescent intensity increases exponentially with an increase in load. Additionally, the sensor patches comprising the coarser micro-exciters exhibited better results. Similarly, better results were achieved at higher loading rates although a threshold loading rate is required to excite the triboluminescent crystals for this sample configuration. The proposed new sensor has the ability to monitor dynamic continuous applied loads.

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Introduction to Triboluminescence

Cited by 16 publications

References 43 publications

Luminescence of Aromatic Compounds During Ultrasonic Treatment of Tb₂(SO₄)₃ Suspension in Commercial Gasoline

Luminescence of Aromatic Compounds During Ultrasonic Treatment of Tb₂(SO₄)₃ Suspension in Commercial Gasoline

Triboluminescence Phenomenon Based on the Metal Complex Compounds—A Short Review

Development of friction-induced triboluminescent sensor for load monitoring

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Introduction to Triboluminescence

Cited by 16 publications

References 43 publications

Luminescence of Aromatic Compounds During Ultrasonic Treatment of Tb2(SO4)3 Suspension in Commercial Gasoline

Luminescence of Aromatic Compounds During Ultrasonic Treatment of Tb2(SO4)3 Suspension in Commercial Gasoline

Triboluminescence Phenomenon Based on the Metal Complex Compounds—A Short Review

Development of friction-induced triboluminescent sensor for load monitoring

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Product

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Luminescence of Aromatic Compounds During Ultrasonic Treatment of Tb₂(SO₄)₃ Suspension in Commercial Gasoline

Luminescence of Aromatic Compounds During Ultrasonic Treatment of Tb₂(SO₄)₃ Suspension in Commercial Gasoline