| 학회 | 한국공업화학회 |
| 학술대회 | 2021년 봄 (05/12 ~ 05/14, 부산 벡스코(BEXCO)) |
| 권호 | 25권 1호 |
| 발표분야 | 포스터-무기재료 |
| 제목 | Enhanced photoluminescence of long lived exciton in metal halide hybrid materials by raising temperature via observing photophysical properties |
| 초록 | Metal halide organic-inorganic hybrid perovskite materials have got attention due to triplet exciton that involves photophysical process. To investigate long lived exciton of hybrid materials, we introduced 1,8-naphthalimide based aromatic ammonium cations to Ruddlesden-Popper type lead halide perovskite lattices. Unlike other phosphorescence light emitting materials, PL lifetime of the film increased as raising the temperature of the film because the energy gap of organic cation between room temperature and low temperature was too small to up-convert lower energy to higher energy by thermal energy. This phenomenon gives us an example for interaction metal halide materials and up-conversing organic chromophore. |
| 저자 | 김다운, 정인 |
| 소속 | 서울대 |
| 키워드 | triplet; room-temperature phosphorescence; Time correlated single photon counting.; hybrid organic-inorganic perovskite; organic aromatic cation |
