| 학회 | 한국재료학회 |
| 학술대회 | 2021년 가을 (11/24 ~ 11/26, 경주 라한호텔) |
| 권호 | 27권 2호 |
| 발표분야 | F. 광기능/디스플레이 재료 분과 |
| 제목 | Energy-transfer study from Ce3+ to Tb3+ in Ba6Ca3Al2Si6O24 host and fabrications of phosphor-converted NUV-LEDs |
| 초록 | Ba6Ca3Al2Si6O24:Ce3+/Tb3+/Na+ phosphors were prepared using a solid-state reaction in a reducing atmosphere [1]. The X-ray diffraction patterns of the resulting phosphors were analyzed and the peak positions were indexed [1]. The photoluminescence (PL) excitation and emission spectra of the Ce3+/Tb3+/Na+ -doped Ba6Ca3Al2Si6O24 phosphors were clearly monitored with emission quenching as a function of Tb3+ content in Ba5.8-2qCe0.1TbqNa0.1+qCa3Al2Si6O24 (q = 0.05-0.4) [1]. Energy transfer mechanism from Ce3+-Tb3+ was discussed and scanning electron microscopy (SEM) images were obtained [1, 2]. The internal quantum efficiency (IQE), color rendering index (CRI), correlated color temperature (CCT), and Commision Internationale de l’Eclairage (CIE) coordinates were characterized for the Ba5.4Ce0.1Tb0.2Na0.3Ca3Al2Si6O24 phosphor using a 365nm LED chip [1, 2]. References: [1] S. Shin, S. Park, Luminescent behavior of Tb3+ transitions in green Ba6Ca3Al2Si6O24:Ce3+/Tb3+/Na+ phosphors. J Mater Sci: Mater Electron 32, 4311-4320 (2021) [2] S. Yang, S. Park, Promising green Sr5B3O9F:Ce3+/Tb3+/Na+ phosphors for NUV executable LED applications. J. Alloys Compd. 834, 155094 (2020) |
| 저자 | 신승용, 박상문 |
| 소속 | 신라대 |
| 키워드 | Phosphor; Energy-transfer; NUV-LED |
