| 세션명 | 대학원생 구두발표(토론III): 자기조립 기술 및 콜로이드 기반 소재 합성과 응용 |
|---|---|
| 발표장 | 제9-1회장 |
| 논문코드 | OD3-3 |
| 발표일 | 2024-04-3 |
| 발표시간 | 15:20-15:30 |
| 논문제목 | Aggregation-induced fluorescent block copolymer photonic crystal for multi-level sensing and encryption |
| 발표자 | 이선주 |
| 발표자 소속 | 연세대학교 |
| 저자 | 이선주, 박철민† |
| 소속 | 연세대학교 |
| 논문초록 | We introduce a novel dual-mode sensing display utilizing aggregation-induced emission luminogens (AIEgens) doped into a block copolymer (BCP) photonic crystal (PC), offering a breakthrough in stimuli-responsive display and high-security encryption technologies. This display exhibits distinct fluorescence (FL), which decreases upon exposure to nitroaromatic gases or changes in temperature. Full-visible structural color (SC) appears with largely quenched FL when the AIEgen-doped BCP PC is swollen in a solvent, allowing independent control of FL and SC of the BCP PC in a deswollen and swollen state, respectively. Since the SC of the AIEgen-doped BCP PC is sensitive to pH, we achieve dual-mode sensing platform over FL and SC, enabling quantitative detection. Capitalizing on this dual-mode capability, we introduce an optical encryption with multi-level security that employs SC, FL, and pH-matched SC to encode quaternary code-type passwords, enhancing data protection significantly. |
THE POLYMER SOCIETY OF KOREA