Ma Liangwei, Xu Qingyang, Sun Siyu, Ding Bingbing, Huang Zizhao, Ma Xiang, Tian He
Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science & Technology, Meilong Road 130, Shanghai, 200237, China.
Angew Chem Int Ed Engl. 2022 Feb 14;61(8):e202115748. doi: 10.1002/anie.202115748. Epub 2022 Jan 3.
In this work, a universal strategy for solid, solution, or gel state organic persistent luminescent materials via radiative energy transfer is proposed. The persistent luminescence (τ>0.7 s) could be remotely regulated between different colors by controlling the isomerization of the energy acceptor. The function relies on the simple radiative energy transfer (reabsorption) mechanism, rather than the complicated communication between the excited state of the molecules such as Förster resonance energy transfer or Dexter energy transfer. And the "apparent lifetime" for the energy acceptor is the same as the lifetime of the energy donor, which was different with a traditional radiative energy transfer process. The simple working principle endows this strategy with huge universality, flexibility, and operability. This work offers a simple, feasible, and universal way to construct various persistent luminescent materials in solid, solution, and gel states.
在这项工作中，提出了一种通过辐射能量转移制备固态、溶液态或凝胶态有机长余辉发光材料的通用策略。通过控制能量受体的异构化，可以在不同颜色之间远程调节长余辉（τ>0.7 s）。该功能依赖于简单的辐射能量转移（再吸收）机制，而不是分子激发态之间复杂的相互作用，如福斯特共振能量转移或德克斯特能量转移。并且能量受体的“表观寿命”与能量供体的寿命相同，这与传统的辐射能量转移过程不同。简单的工作原理赋予了该策略巨大的通用性、灵活性和可操作性。这项工作提供了一种简单、可行且通用的方法来构建固态、溶液态和凝胶态的各种长余辉发光材料。
