| 학회 |
한국재료학회 |
| 학술대회 |
2021년 가을 (11/24 ~ 11/26, 경주 라한호텔) |
| 권호 |
27권 2호 |
| 발표분야 |
B. 나노화학/바이오 재료 분과 |
| 제목 |
Highly Luminescent and Multifunctional Zero-Dimensional Ternary Lanthanide Halide Colloidal Nanocrystals |
| 초록 |
Herein, we report the syntheses of novel, highly luminescent, nearly monodisperse zero-dimensional (0-D) ternary lanthanide halide colloidal nanocrystals (NCs) for the first time. The ternary lanthanide halide NCs are synthesized via heating-up method and exhibit high size and shape uniformities. The ternary lanthanide halide NCs contain completely isolated octahedral units, resulting in 0-D ternary metal halide structures. Therefore, these NCs exhibit deep-blue bright photoluminescence (PL) under ultraviolet (UV) excitation, and the PL properties are tunable by changing the lanthanide cations within the octahedral units. High photoluminescence quantum yields (PLQYs) are observed. In addition, we observed the paramagnetic properties of the ternary lanthanide halide NCs owing to the unpaired electrons within the f-orbitals of the trivalent lanthanide ions. This study provides synthetic guidance for the rational design of novel lanthanide-based 0-D metal halide NCs, which are potentially applicable for use in highly efficient, multifunctional NC emitters. |
| 저자 |
이민지, 홍성빈, 우호영, 채지연, 이다원, 정혜선, 백태종
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| 소속 |
중앙대 |
| 키워드 |
nanocrystals; rare earth; luminescence; perovskite variants
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| E-Mail |
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