磷光
自愈水凝胶
荧光
自愈
化学
光致发光
量子产额
纳米技术
发光
光电子学
材料科学
光学
高分子化学
医学
物理
替代医学
病理
作者
Xin Jiang,Menglin Wu,Lu Zhang,Jingyang Wang,Mingyue Cui,Jinhua Wang,Xueke Pang,Bin Song,Yao He
标识
DOI:10.1021/acs.analchem.2c00510
摘要
Herein, we present a class of multi-functional hydrogels, which simultaneously features strong fluorescence, ultralong room-temperature phosphorescence (RTP), and excellent self-healing properties. In particular, the as-prepared hydrogels could produce strong fluorescence with a photoluminescence quantum yield (PLQY) value of 22.4%, as well as ultralong RTP (lasts for ∼20 s with phosphorescence lifetime of ∼264 ms). In addition to the superior optical performance, the as-prepared hydrogels possess excellent self-healing property, with ∼91.5% self-healing efficiency at room temperature and an increased elasticity of ∼281%. Taking advantages of these unique merits, we further exploit such high-performance hydrogels for advanced anti-counterfeiting applications. Significantly, the hydrogel-based anti-counterfeiting tags are capable of realizing multi-color static information in the spatial scale and more than five kinds of dynamic information during 15 s of the phosphorescence decay process in the temporal scale.
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