| 학회 | 한국공업화학회 |
| 학술대회 | 2021년 봄 (05/12 ~ 05/14, 부산 벡스코(BEXCO)) |
| 권호 | 25권 1호 |
| 발표분야 | 포스터-디스플레이 |
| 제목 | Surface Engineered Highly Stable Perovskite Nanocrystals by Reconstructing Surfaces |
| 초록 | Colloidal perovskite nanocrystals with ABX3 structure have gained immense interests from many scientists because of their easily and broadly tunable emission wavelength, narrow photoluminescence linewidth (high color purity), and facile synthetic route. However, instability issues such as phase transformation, merging, loss of colloidal stability, and PL decrease remained unsolved, therefore further advancement of colloidal perovskite NCs is significantly hindered. Herein, with an all inorganic CsPbX3 (X=Cl, Br, or I) perovskite NC as a model system, we demonstrate dramatic stability improvement by simple post-synthetic strategies. Our post-treated CsPbX3 NCs show considerably enhanced lifetime under ambient conditions. We interpret such enhanced stability in the context of surface reconstruction upon post-treatment. |
| 저자 | 우주영1, 박주선2, 조성우1, 김기영1, 송신애1, 임성남1, 정소희2 |
| 소속 | 1한국생산기술(연), 2성균관대 |
| 키워드 | perovskite nanocrystal; surface; ligand; quantum dot; post treatment |
