Achieving Multicolor Long-Lived Luminescence in Dye-Encapsulated Metal-Organic Frameworks and Its Application to Anticounterfeiting Stamps
Achieving Multicolor Long-Lived Luminescence in Dye-Encapsulated Metal-Organic Frameworks and Its Application to Anticounterfeiting Stamps
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染料封装金属有机框架实现多色长寿命发光及其在防伪邮票中的应用
DOI：
10.1021/acsami.7b13486
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发表时间：
2018
影响因子：
9.5
通讯作者：
Xie Rong Jun
中科院分区：
文献类型：
--
作者：
Liu Jianbin;Zhuang Yixi;Wang Le;Zhou Tianliang;Hirosaki Naoto;Xie Rong Jun
长寿命发光金属有机框架（MOF）由于其结构可调性以及在传感、生物成像、安全系统和逻辑门方面的潜在应用而备受关注。目前，这种无机-有机混合物的长寿命发光主要局限于短波长区域。然而，MOF 的长波长长寿命发光发射却很少有报道。在这项工作中，通过将不同的染料封装到绿色磷光MOFs Cd(m-BDC)(BIM)中，成功合成了一系列结构稳定的长波长长寿命发光MOFs。染料封装的 MOF 中的多色长波长长寿命发光发射（范围从绿色到红色）是通过 MOF 到染料的磷光能量转移实现的。此外，这些新型长寿命发光 MOF 的良好光学特性使其可以用作先进防伪邮票的印台。因此，该工作不仅为新型多色长寿命发光材料的开发提供了简便的途径，而且为先进长寿命发光防伪材料的开发提供了参考。
Long-lived luminescent metal–organic frameworks (MOFs) have attracted much attention due to their structural tunability and potential applications in sensing, biological imaging, security systems, and logical gates. Currently, the long-lived luminescence emission of such inorganic–organic hybrids is dominantly confined to short-wavelength regions. The long-wavelength long-lived luminescence emission, however, has been rarely reported for MOFs. In this work, a series of structurally stable long-wavelength long-lived luminescent MOFs have been successfully synthesized by encapsulating different dyes into the green phosphorescent MOFs Cd(m-BDC)(BIM). The multicolor long-wavelength long-lived luminescence emissions (ranging from green to red) in dye-encapsulated MOFs are achieved by the MOF-to-dye phosphorescence energy transfer. Furthermore, the promising optical properties of these novel long-lived luminescent MOFs allow them to be used as ink pads for advanced anticounterfeiting stamps. Therefore, this work not only offers a facile way to develop new types of multicolor long-lived luminescent materials but also provides a reference for the development of advanced long-lived luminescent anticounterfeiting materials.