发光
磷光
材料科学
水溶液
纳米技术
猝灭(荧光)
纳米颗粒
自组装
光化学
荧光
光电子学
化学
物理化学
光学
物理
作者
Pingru Su,Tao Wang,Panpan Zhou,Xiaoxi Yang,Xiaoxia Feng,Meina Zhang,Lijuan Liang,Yu Tang,Chun‐Hua Yan
摘要
Design and engineering of highly efficient emitting materials with assembly-induced luminescence, such as room-temperature phosphorescence (RTP) and aggregation-induced emission (AIE), have stimulated extensive efforts. Here, we propose a new strategy to obtain size-controlled Eu3+-complex nanoparticles (Eu-NPs) with self-assembly-induced luminescence (SAIL) characteristics without encapsulation or hybridization. Compared with previous RTP or AIE materials, the SAIL phenomena of increased luminescence intensity and lifetime in aqueous solution for the proposed Eu-NPs are due to the combined effect of self-assembly in confining the molecular motion and shielding the water quenching. As proof of concept, we also show that this system can be further applied in bioimaging, temperature measurement and HClO sensing. The SAIL activity of the rare-earth (RE) system proposed here offers a further step forward on the roadmap for the development of RE light conversion systems and their integration in bioimaging and therapy applications.
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