| 초록 |
For controlling the photoluminescence characteristics in both solution and solid phases, a series of diketopyrrolopyrrole (DPP) luminogen amphiphiles were developed and synthesized via anionic exchange process. Engineering well-defined supramolecular structures effectively exhibited multicolor emission in response to thermal, mechanical, and chemical stimuli. The reversibly patternable light emission was enabled by phase transition from the metastable amorphous solid to the stable orthorhombic crystal of [DPIm][Br]. The linearly polarized light emission is also shown in self-organization into the smectic crystalline phase of [DP-Im][TFSI]. Finally, we showed the fabrication of smart sensors for food or vaccine packaging that can detect thermal attack by combining [DP-Im][Br] and [DP-Im][TFSI] together. This work was supported by Mid-Career Researcher Program (2021R1A2C200942), Basic Research Laboratory Program (2020R1A4A1018259). |
