Mechanoluminescence and Mechanical Quenching of Afterglow Luminescent Particles for Wearable Photonic Display,Advanced Functional Materials

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Mechanoluminescence and Mechanical Quenching of Afterglow Luminescent Particles for Wearable Photonic Display
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2024-02-09 , DOI: 10.1002/adfm.202314861
Seong‐Jong Kim ₁ , Fan Yang _{2,

3} , Ho Sang Jung _{4,

5} , Guosong Hong ₃ , Sei Kwang Hahn _{1,

5}

Affiliation

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.

中文翻译：

用于可穿戴光子显示器的余辉发光颗粒的机械发光和机械猝灭

余辉发光粒子（ALP）在机械发光（ML）和机械猝灭（MQ）中的光学特性引起了各种技术应用的极大关注。然而，这些独特的现象需要针对特定的光子应用进行更清楚的解释。在这里，ALP 旨在开发可穿戴和可重写的光子显示系统，作为通信有限的黑暗条件或水下环境下的通信工具箱。该显示系统在机械压力下沿手写轨迹展示短 ML 后的持久 MQ，并且书写内容可以通过短紫外光照射轻松擦除，从而保持系统完整性，并具有 ML 和 MQ 响应的高再现性。评估了捕获电子和充电过程对 ML 和 MQ 的影响，从而深入了解其潜在机制。此外，该显示系统具有出色的耐湿性，并在水下长期保持其可重写和光子能力。此外，还证明了显示系统在人体皮肤上的可重写特性，证实了其作为可穿戴光子显示系统的有效性。总而言之，这项研究将为开发具有机械光转换的各种生物医学应用的生物光子材料开辟一条新途径。

更新日期：2024-02-09

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