Abstract

Room temperature phosphorescence (RTP) materials show potential applications in information security and optoelectronic devices, but it is still a challenge to achieve RTP in organic materials under water ambient due to the unstable property of triplet states. Herein, water-induced RTP has been demonstrated in the organic microrod (OMR). Noting that the RTP intensity of the as-prepared OMR is greatly enhanced when water is introduced, and the reason for the enhancement can be attributed to the formation of hydrogen-bonded networks inside the OMR. The hydrogen-bonded networks can confine the molecular motion effectively, leading to the stability of triplet states; thus the lifetime of the OMR can reach 1.64 s after introducing water. By virtue of the long lifetime of the OMR in the presence of water, multilevel data encryption based on the OMR has been demonstrated.

中文翻译：

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通过构建氢键网络实现水诱导的超长室温磷光

摘要

室温磷光（RTP）材料在信息安全和光电设备中显示出潜在的应用前景，但是由于三重态的不稳定特性，在水环境下在有机材料中实现RTP仍然是一个挑战。在本文中，已经在有机微棒（OMR）中证明了水诱导的RTP。注意到当引入水时，所制备的OMR的RTP强度大大提高，并且这种增强的原因可以归因于OMR内部的氢键网络的形成。氢键网络可以有效地限制分子运动，从而导致三重态稳定。因此，引入水后，OMR的寿命可以达到1.64 s。由于OMR在有水的情况下使用寿命长，