상세정보
학술지
The Effects of Zinc on the Characterisitics of (Zn,Ca)TiO3:Pr3+ Phoshors
- 발행일
- 201107
- 출처
- Journal of Crystal Growth, v.326 no.1, pp.94-97
- ISSN
- 0022-0248
- 출판사
- Elsevier
- 협약과제
- 10MB6800, 디스플레이용 산화물 반도체 조성 및 고밀도 산화물 반도체 타켓 개발, 정우석
- 초록
- The effects of zinc on the zinc-doped CaTiO3:Pr3 phosphors have been investigated by varying the zinc concentrations from 0 to 100 mol%. The variation of zinc concentration influences the crystallinity and morphology of the phosphors. The crystallinity and PL intensity increase as zinc content increases from 0 to 25 mol%. (Zn,Ca)TiO3:Pr3 at 25 mol% Zn exhibits nearly 3.6 times enhanced PL intensity compared to CaTiO3:Pr3. Moreover, the red emitting phosphor developed in this study can be very effectively excited at the wavelengths of 400 nm. We think that (Zn,Ca)TiO3:Pr3 can be used as a complementary phosphor in the red region for the white LEDs. © 2011 Elsevier B.V. All rights reserved.
- KSP 제안 키워드
- 5 mol%(MgO), PL intensity, Red emitting, White LED, Zinc-doped