Tunable Afterglow System via Controllable Photoenergy Storage and Release,ACS Applied Materials & Interfaces

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Tunable Afterglow System via Controllable Photoenergy Storage and Release
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2023-06-08 , DOI: 10.1021/acsami.3c04490
Linna Guo ₁ , Yishuo Sun ₁ , Xianlong Su ₁ , Kuangshi Sun ₁ , Lei Chen ₁ , Yiwei Fan ₁ , Yuetian Pei ₁ , Jiamiao Yin ₁ , Yiling Li ₁ , Donghao Hu ₁ , Lijun Chen ₂ , Ming Xu ₁ , Wei Feng ₁ , Fuyou Li ₁

Affiliation

Afterglow luminescence has garnered significant attention due to its excellent optical properties. Currently, most afterglow phenomena are produced by persistent luminescence following cessation of the excitation light. However, it remains a challenge to control the afterglow luminescence process due to rapid photophysical or photochemical changes. Here, we develop a new strategy to control the afterglow luminescence process by introducing pyridones as singlet oxygen (¹O₂) storage reagents (OSRs), where ¹O₂ can be stored in covalent bonds at relatively low temperatures and released upon heating. The afterglow luminescence properties, including afterglow intensity, decay rate, and decay process, can be tuned flexibly by regulating temperature or OSR structures. Based on the controllable luminescence properties, we devise a new strategy for information security. We believe that such an excellent luminescent system also holds remarkable potential for applications in many other fields.

中文翻译：

通过可控光能存储和释放的可调谐余辉系统

余辉发光由于其优异的光学特性而引起了人们的广泛关注。目前，大多数余辉现象是由激发光停止后的持续发光产生的。然而，由于快速的光物理或光化学变化，控制余辉发光过程仍然是一个挑战。在这里，我们开发了一种通过引入吡啶酮作为单线态氧（¹ O ₂）存储试剂（OSR）来控制余辉发光过程的新策略，其中¹ O ₂可以在相对较低的温度下以共价键储存并在加热时释放。余辉发光特性，包括余辉强度、衰变速率和衰变过程，可以通过调节温度或OSR结构来灵活调节。基于可控发光特性，我们设计了一种新的信息安全策略。我们相信，如此优秀的发光系统在许多其他领域也具有巨大的应用潜力。

更新日期：2023-06-08

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