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- Title
Energy Transfer‐Assisted Color Conversion of Persistent Mechanoluminescence in RhB@SiO<sub>2</sub>/SrAl<sub>2</sub>O<sub>4</sub>:Eu,Dy System for Multilevel Information Encryption.
- Authors
Deng, Yuan; Peng, Danni; Shen, Cheng‐Long; Sun, Junlu; Zheng, Guangsong; Chang, Shulong; Liang, Yachuan; He, Jun; Shan, Chong‐Xin; Dong, Lin
- Abstract
Persistent mechanoluminescence (PML) is highly desirable for its ability to overcome transient‐emitting behavior, but its applications are hindered by the limited emission wavelengths. Herein, a universal chemical interlinkage‐assisted efficient energy transfer (ET) strategy is introduced to achieve color conversion from green to red in traditional PML materials. A straightforward chemical route to create the RhB@SiO2/SAOED system is established via covalent chemical interlinkage by depositing mesoporous silica‐encapsulated Rhodamine B (RhB) nanoparticles (RhB@SiO2) onto SrAl2O4:Eu, Dy (SAOED) particles. The resulting system exhibits a high ET efficiency of 53.5%. The multicolor PML of the RhB@SiO2/SAOED system remains visible to the naked eye for exceeding 28 s after mechanical stimulation. With this unique PML behavior, the RhB@SiO2/SAOED system demonstrates the potential applications ranging from visualized reading activities to multi‐mode anticounterfeiting. This universal PML color‐conversion strategy provides a new approach to high‐performance mechanical light energy‐conversion systems and may further inspire more diverse functional applications of classical PML materials.
- Subjects
FLUORESCENCE resonance energy transfer; RHODAMINE B; ENERGY transfer; INFORMATION storage &; retrieval systems; NANOPARTICLES
- Publication
Laser & Photonics Reviews, 2024, Vol 18, Issue 8, p1
- ISSN
1863-8880
- Publication type
Article
- DOI
10.1002/lpor.202400251