Versatile and High-Performance LiTaO₃:Tb³⁺, Gd³⁺ Perovskite for Multimode Anti-counterfeiting, Flexible X-Ray Imaging, Continuous Stress Sensing, and Non-Real-Time Recording

Versatile and High-Performance LiTaO₃:Tb³⁺, Gd³⁺ Perovskite for Multimode Anti-counterfeiting, Flexible X-Ray Imaging, Continuous Stress Sensing, and Non-Real-Time Recording

Lyu, Tianshuai (Huaqiao University)
Dorenbos, P. (TU Delft RST/Luminescence Materials)
Wei, Zhanhua (Huaqiao University)

2023

Multimode luminescence relates to how charge carriers are transported and recombined in response to various physical excitations. It shows promising applications in many fields like advanced anti-counterfeiting, information storage and encryption. Enabling a stable single compound with multimode luminescence is a unique technology but still remains a challenge. Herein, a versatile and high-performance energy storage LiTaO₃:0.01Tb³⁺,xGd³⁺ perovskite is discovered by utilizing the interplay of electron-trapping defect levels and hole-trapping Tb³⁺. It combines an excellent charge carrier storage capacity (≈7 and 12 times higher than state-of-the-art BaFBr(I):Eu²⁺ and Al₂O₃:C), >1200 h storage duration, >40 h afterglow, efficient optically stimulated luminescence, persistent mechanoluminescence, and force-induced charge carrier storage features. Particularly, it well responds to various stimuli channels, i.e., wide-range X-rays to 850 nm infrared photons, thermal activation, mechanical force grinding, or compression. To elucidate this multimode luminescence, charge carrier trapping and release processes in LiTaO₃:0.01Tb³⁺,xGd³⁺ with various physical stimulations will be unraveled by combining the vacuum-referred binding diagram construction, spectroscopy, thermoluminescence, and mechanoluminescence techniques. The versatile and high-performance LiTaO₃:0.01Tb³⁺,xGd³⁺ enables promising proof-of-concept multimode luminescence applications in advanced anti-counterfeiting, flexible X-ray imaging, continuous compression force sensing, and non-real-time recording.

advanced anti-counterfeiting
continuous stress sensing
flexible X-ray imaging
LiTaO:Tb,Gd perovskite
Multimode luminescence
non-real-time stress recording

http://resolver.tudelft.nl/uuid:95ac9c63-2b27-48f7-9e55-bb03c41dfd63

https://doi.org/10.1002/lpor.202300323

2024-03-22

1863-8880

Laser and Photonics Reviews, 17 (11)

Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.

Institutional Repository

journal article

© 2023 Tianshuai Lyu, P. Dorenbos, Zhanhua Wei