Shock-wave induced mechanoluminescence: A new technique for studying effects of shock pressure on crystals

Chandra, B. P.; Parganiha, S.; Sonwane, V.D.; Chandra, Vivek; Jha, Piyush; Baghel, R.N.

doi:10.1016/j.jlumin.2016.05.046

“…The transient ML intensity of ZGGO : Cr is reliant on the number of detrapped electrons that reach the conduction band. [22] The application of mechanical force can reduce the trap depth. [23] Given the Boltzmann's statistical formula, the number of detrapped electrons (n d ) can then be plotted as a function of electric field strength (F) induced by force (f):…”

Section: Methodsmentioning

confidence: 99%

Self‐Powered and Self‐Recoverable Multimodal Force Sensors Based on Trap State and Interfacial Electron Transfer

Wang,

Tan,

Wang

et al. 2024

Angewandte Chemie

1

0

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Multi‐dimensional force sensing that combines intensity, location, area and the like could gather a wealth of information from mechanical stimuli. Developing materials with force‐induced optical and electrical dual responses would provide unique opportunities to multi‐dimensional force sensing, with electrical signals quantifying the force amplitude and the luminescence output providing spatial distribution of force. However, the reliance on external power supply and high‐energy excitation source brings significant challenges to the applicability of multi‐dimensional force sensors. Here we reported the mechanical energy‐driven and sunlight‐activated materials with force‐induced dual responses, and investigated the underlying mechanisms of self‐sustainable force sensing. Theoretical analysis and experimental data unraveled that trap‐controlled luminescence and interfacial electron transfer play a major role in force‐induced optical and electrical output. These materials were manufactured into pressure sensor with renewable dual‐mode output for quantifying and visualization of pressures by electrical and optical output, respectively, without power supply and high‐energy irradiation. The quantification of tactile sensation and stimuli localization of mice highlighted the multi‐dimensional sensing ability of the sensor. Overall, this self‐powered pressure sensor with multimodal output provides more modalities of force sensing, poised to change the way that intelligent devices sense with the world.

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“…It should be noted that most of the earlier studies focused on the glow from crystals, i.e. the solid‐state component of the TL spectrum, because this is important when designing sensors to detect the destruction of construction materials . As a result, the gas component of the TL spectrum has been rarely studied.…”

Section: Introductionmentioning

confidence: 99%

Quenching of electronically excited N₂ molecules and Tb³⁺/Eu³⁺ ions by polyatomic sulfur‐containing gases upon triboluminescence of inorganic lanthanide salts

Шарипов

¹

,

Tukhbatullin

²

,

Bagautdinova

³

2016

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The triboluminescence of Eu (SO ) ·8H O and Tb (SO ) ·8H O crystals in an atmosphere of sulfur dioxide (SO ) or sulfur hexafluoride (SF ) was studied. Quenching of the gaseous (emitter N ) and solid-state (emitter Ln ) components of the triboluminescence (TL) emission spectrum was seen when compared with the TL spectra of the crystals in air. One reason for the quenching is a reduction in the effective charge both on the crystal surface and in micro-cracks under an SO or SF atmosphere, leading to a decrease in the probability of electrical breakdown and a reduction in electric field strength responsible for the electroluminescence excitation of lanthanide ions in TL. In an SO atmosphere, there is an additional mode of quenching, as confirmed by quenching of the crystal photoluminescence (emitter Ln ). It is supposed that this quenching is due to an exchange of energy on electronic excitation of the lanthanide ions to the vibrational sublevels of the SO molecules adsorbed on the crystal surface. Another additional channel of TL quenching originates from non-radiative transfer of excitation energy during collisions between the *N and SO molecules in the gaseous phase.

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Self‐Powered and Self‐Recoverable Multimodal Force Sensors Based on Trap State and Interfacial Electron Transfer

Wang,

Tan,

Wang

et al. 2024

Angew Chem Int Ed

1

0

View full text Add to dashboard Cite

Multi‐dimensional force sensing that combines intensity, location, area and the like could gather a wealth of information from mechanical stimuli. Developing materials with force‐induced optical and electrical dual responses would provide unique opportunities to multi‐dimensional force sensing, with electrical signals quantifying the force amplitude and the luminescence output providing spatial distribution of force. However, the reliance on external power supply and high‐energy excitation source brings significant challenges to the applicability of multi‐dimensional force sensors. Here we reported the mechanical energy‐driven and sunlight‐activated materials with force‐induced dual responses, and investigated the underlying mechanisms of self‐sustainable force sensing. Theoretical analysis and experimental data unraveled that trap‐controlled luminescence and interfacial electron transfer play a major role in force‐induced optical and electrical output. These materials were manufactured into pressure sensor with renewable dual‐mode output for quantifying and visualization of pressures by electrical and optical output, respectively, without power supply and high‐energy irradiation. The quantification of tactile sensation and stimuli localization of mice highlighted the multi‐dimensional sensing ability of the sensor. Overall, this self‐powered pressure sensor with multimodal output provides more modalities of force sensing, poised to change the way that intelligent devices sense with the world.

show abstract

Shock-wave induced mechanoluminescence: A new technique for studying effects of shock pressure on crystals

Cited by 11 publications

References 26 publications

Self‐Powered and Self‐Recoverable Multimodal Force Sensors Based on Trap State and Interfacial Electron Transfer

Self‐Powered and Self‐Recoverable Multimodal Force Sensors Based on Trap State and Interfacial Electron Transfer

Quenching of electronically excited N₂ molecules and Tb³⁺/Eu³⁺ ions by polyatomic sulfur‐containing gases upon triboluminescence of inorganic lanthanide salts

Self‐Powered and Self‐Recoverable Multimodal Force Sensors Based on Trap State and Interfacial Electron Transfer

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Shock-wave induced mechanoluminescence: A new technique for studying effects of shock pressure on crystals

Cited by 11 publications

References 26 publications

Self‐Powered and Self‐Recoverable Multimodal Force Sensors Based on Trap State and Interfacial Electron Transfer

Self‐Powered and Self‐Recoverable Multimodal Force Sensors Based on Trap State and Interfacial Electron Transfer

Quenching of electronically excited N2 molecules and Tb3+/Eu3+ ions by polyatomic sulfur‐containing gases upon triboluminescence of inorganic lanthanide salts

Self‐Powered and Self‐Recoverable Multimodal Force Sensors Based on Trap State and Interfacial Electron Transfer

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Quenching of electronically excited N₂ molecules and Tb³⁺/Eu³⁺ ions by polyatomic sulfur‐containing gases upon triboluminescence of inorganic lanthanide salts