A succinct enhanced luminescence strategy for fluorescent ionic liquids and the application for detecting CO2

An interesting phenomenon was found that fluorophore was introduced into ionic liquid (IL) to magnify fluorescence signal via the thermally activated delayed fluorescence process; thus up to 15 fold enhancements were achieved. Hence, we reported a succinct enhanced luminescence strategy to reduce single-triplet energy split by the tunability of ILs. This strategy could be extended to more kinds of ILs by the virtue of a preliminary DFT calculation screening. Moreover, the optical feature of IL sensor made it a promising candidate as a gas fluorescence sensor. We reported a succinct enhanced luminescence strategy to reduce single-triplet energy split using the tunability of ionic liquids; thus up to 15 fold enhancements were achieved. This fluorescence ionic liquid has the advantages of a simple synthesis, convenient regulation and a remarkable effect, which has a good potential for detecting gas such as CO2. [Display omitted]