Back to Search Start Over

Controllable Modulation of Trapped Carriers in Mechano/Thermo Dual‐Responsive Particles for Advanced Stress‐Encoded Information Storage.

Authors :
Peng, Danni
Sun, Junlu
Deng, Yuan
Jiao, Fuhang
Li, Xi
Liu, Wenjin
Wang, Lijun
Shan, Chong‐Xin
Dong, Lin
Source :
Laser & Photonics Reviews. Oct2024, Vol. 18 Issue 10, p1-9. 9p.
Publication Year :
2024

Abstract

Mechanoluminescence (ML) is a fascinating phenomenon with diverse applications in pressure sensing, damage detection, and stress distribution visualization. However, most ML materials exhibit instantaneous photon emission that requires real‐time recording with a photodetector, and thereby circumscribing their applicability predominantly to real‐time stress‐sensing scenarios. In this work, a novel method is introduced for non‐real‐time stress sensing utilizing Li0.1Na0.9NbO3:Pr3+ phosphor, which allows for the retrieval of pressure location and intensity even 20 days after the event. The influence of heat and pressure on the trap depth distribution is analyzed using thermoluminescence (TL) and ML measurements, and it is proved that both heat and pressure release the captured electrons in the same traps. Leveraging the intricate competition between mechanical and thermal detrapping processes, stress information can be accessed through TL imaging. Furthermore, an algorithm is proposed based on this phenomenon to authenticate the stress information. This research not only advances the fundamental understanding of ML phenomena but also introduces a novel approach for applications such as mechano‐history indicators, security papers, and advanced data storage systems. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
18638880
Volume :
18
Issue :
10
Database :
Academic Search Index
Journal :
Laser & Photonics Reviews
Publication Type :
Academic Journal
Accession number :
180279343
Full Text :
https://doi.org/10.1002/lpor.202400229