| 학회 | 한국고분자학회 |
| 학술대회 | 2022년 가을 (10/05 ~ 10/07, 대구컨벤션센터) |
| 권호 | 47권 2호 |
| 발표분야 | 기능성 고분자 패터닝을 이용한 위조방지 기술 |
| 제목 | Micropatternable Triplet-Triplet Annihilation Upconversion Thin Film for Anticounterfeiting Application |
| 초록 | Triplet−triplet annihilation upconversion (TTA-UC) has recently drawn widespread interest for its capacity to harvest low-energy photons and to broaden the absorption spectra of photonic devices, such as solar cells. Of the solid-state host materials investigated, rubbery polymers facilitate the highest TTA-UC efficiency. To date, however, their need for long-term oxygen protection has limited rubbery polymers to rigid film architectures that forfeit their intrinsic flexibility. This study introduces a new multilayer thin-film architecture, in which scalable solution processing techniques are employed to fabricate flexible, photostable, and efficient TTA-UC thin films containing layers of oxygen barrier and host polymers. Moreover, it introduces new opportunities in unexplored applications such as anticounterfeiting. |
| 저자 | Jaehyuk Kim |
| 소속 | Pusan National Univ. |
| 키워드 | Upconversion ; Anticounterfeiting ; Micropattern ; Thin film |
