Center for Organic Photonics and Electronics Research (OPERA), Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.
JST, ERATO, Adachi Molecular Exciton Engineering Project, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka, 819-0395, Japan.
Adv Mater. 2018 Nov;30(45):e1803713. doi: 10.1002/adma.201803713. Epub 2018 Sep 14.
Long-persistent luminescence (LPL) materials have a wide range of applications, such as in architectural decorations, safety signs, watch dials, and glow-in-the-dark toys. Present LPL materials based on inorganics must be processed into powders and blended with polymer matrices before use. However, micropowders of inorganic LPL materials show poor compatibility with common polymers, limiting the mechanical properties and transparency of the composites. Here, a polymer-based organic LPL (OLPL) system that is flexible, transparent, and solution processable is reported. Following low-power excitation at room temperature, this polymer-based OLPL system exhibits LPL after phosphorescence from the donor.
长余辉发光（LPL）材料具有广泛的应用，例如在建筑装饰、安全标志、手表表盘和夜光玩具中。目前基于无机材料的 LPL 材料必须先加工成粉末，然后与聚合物基质混合使用。然而，无机 LPL 材料的微粉与常见聚合物的相容性较差，限制了复合材料的机械性能和透明度。在此，报道了一种基于聚合物的有机 LPL（OLPL）体系，该体系具有柔韧性、透明性和溶液可加工性。在室温下低功率激发后，该基于聚合物的 OLPL 体系在供体磷光后表现出 LPL。
