Synergistic Mechanoluminescence and Mechanochromism Via Triboelectrification‐Induced Eu³⁺/Eu²⁺ Redox Shuttle

Laser & Photonics Review, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 28, 2024

Abstract Materials capable of simultaneously achieving both mechanoluminescence (ML) and luminescent mechanochromism (L‐MC) hold great promise in smart stimuli‐responsive applications. However, single‐phase single‐doped inorganic ML materials with pronounced L‐MC behavior are exceptionally rare because their single center. This study investigates a unique phenomenon series novel triboelectrification‐induced materials, Sr 5 (PO 4 ) 3 X:Eu 3+ (X = F, Cl, Br). These exhibit the situ ionic valence state transition excitation behaviors Eu ‐Eu 2+ ion pair by utilizing inherent properties triboelectrification cause significant differences emission spectra during photoluminescence process. The redox reactions ions process influenced synergistic action shuttle (suitable potential), (driving force), vacancies (catalysts). Hence, this presents direct experimental evidence for underlying mechanism advances development applications materials.

Language: Английский

A novel red emitting phosphor CaSc2O4:Eu2+ for the warm white LEDs

Journal of Luminescence, Journal Year: 2024, Volume and Issue: unknown, P. 121052 - 121052

Published: Dec. 1, 2024

Language: Английский