光致发光
铽
镧系元素
光化学
材料科学
发光
天线效应
铕
发色团
荧光
费斯特共振能量转移
光电子学
化学
光学
有机化学
物理
离子
作者
Yuan Wang,Jinglei Chen,Yuan Shang,Peng Li,Huanrong Li
标识
DOI:10.1016/j.jre.2021.01.021
摘要
Energy transfer as an important component in light-harvesting antenna systems can mimic effectively natural photosynthesis processes, showing great potential in optoelectronic devices. Herein, we report a responsive polymeric hydrogel based on the combination of excited state intramolecular proton transfer (ESIPT) molecule (Salicylic acid, Sal) and terbium (III) (Tb3+), as enabled by external stimuli to construct artificial light-harvesting antenna systems. Benefiting from unique photophysical properties of Sal, the synthesized hydrogel displays a temperature-dependent reversible opaque ↔ transparent states transition, accompanied with an interesting photoluminescence behavior. Moreover, by further incorporating europium (III) (Eu3+) into the hydrogel, we demonstrate well-defined cascades of energy transfer that provides a tunable optical output from the collection of lanthanides by the excitation of a common sensitizer (Sal) upon base vapor stimulation. Efficient energy transfer efficiency from Tb3+ to Eu3+, as high as 97.8%, was also obtained as established by the time-resolved fluorescence spectroscopy analysis.
科研通智能强力驱动
Strongly Powered by AbleSci AI