机械容积
余辉
材料科学
发光
猝灭(荧光)
可穿戴计算机
光子学
光电子学
纳米技术
光学
荧光
物理
伽马射线暴
天文
计算机科学
嵌入式系统
作者
Seong‐Jong Kim,Fan Yang,Ho Sang Jung,Guosong Hong,Sei Kwang Hahn
标识
DOI:10.1002/adfm.202314861
摘要
Abstract Optical properties of afterglow luminescent particles (ALPs) in mechanoluminescence (ML) and mechanical quenching (MQ) have attracted great attention for diverse technological applications. However, these unique phenomena need to be more clearly explained for the specific photonic application. Here, ALPs are designed for the development of a wearable and rewritable photonic display system as a communication toolbox under dark conditions or underwater environments with limited communication. This display system demonstrates long‐lasting MQ after short ML along the handwritten trajectories with mechanical pressure and the written content can be easily erased by short UV light irradiation, preserving the system integrity with the high reproducibility of ML and MQ responses. The effect of trapped electrons and the recharging process on the ML and MQ is assessed, which provides insights into their underlying mechanisms. In addition, this display system exhibits remarkable resistance to humidity and retains its rewritable and photonic capabilities underwater for a long‐term period. Furthermore, the rewritable property of display system on human skin is demonstrated, confirming their effectiveness as a wearable photonic display system. Taken together, this research will pave a big new avenue to develop biophotonic materials for various biomedical applications with mechano‐optical conversions.
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