发光
镧系元素
材料科学
多路复用
光电子学
聚合物
离子
纳米技术
计算机科学
化学
电信
复合材料
有机化学
作者
Yiyi Ou,Weijie Zhou,Zece Zhu,Fengkai Ma,Rongfu Zhou,Fang Su,Lirong Zheng,Wei Ma,H. Liang
标识
DOI:10.1002/anie.202011559
摘要
Abstract Optical multiplexing based on luminescent materials with tunable color/lifetime has potential applications in information storage and security. However, the available tunable luminescent materials reported so far still suffer from several drawbacks of low efficiency or poor stability, thus restraining their further applications. Herein, we demonstrate a strategy to develop efficient and stable lanthanide coordination polymers (LCPs) with tunable luminescence as a new option for optical multiplexing. Their multicolor emission from green to red and naked‐eye‐sensitive green emission with tunable lifetime (from ca. 300 to ca. 600 μs) can be controlled by host differential sensitization and energy transfer between lanthanide ions. The quantum efficiencies of developed samples range from around 20 % to 46 % and the luminescence intensity/lifetime appear quite stable in polar solvents up to ten weeks. Furthermore, with the aid of inkjet printing and concepts of luminescence lifetime imaging and time‐gated imaging, we illustrate their promising applications of information storage and security in spatial and temporal domains.
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