Properties of Self-recoverable Mechanoluminescence Phosphor Ca₅Ga₆O₁₄∶Eu³⁺ and Its Information Encryption Application

Abstract

On July 01, 2024, a team of experts led by ZHANG Ting, WANG Zhijun, LI Panlai from the School of Hebei Key Laboratory of Optic-electronic Information and Materials published an article in the 发光学报, introducing their research progress in the field of self-recoverable mechanoluminescent phosphors. The team developed a novel phosphor Ca5Ga6O14:Eu3+, which exhibits red mechanoluminescence with good repeatability and can be tuned to green by co-doping with Tb3+. This discovery paves the way for applications in optical information encryption, offering a new direction for secure communication.