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학술지 The Effects of Zinc on the Characterisitics of (Zn,Ca)TiO3:Pr3+ Phoshors
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저자
정승묵, 강승열, 신재헌, 정우석, 황치선, 조경익, 이승재, 김영진
발행일
201107
출처
Journal of Crystal Growth, v.326 no.1, pp.94-97
ISSN
0022-0248
출판사
Elsevier
DOI
https://dx.doi.org/10.1016/j.jcrysgro.2011.01.060
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.
키워드
A1. Crystal structure, A1. Doping, A1. Solid solutions, B1. Oxides, B2. Phosphors, B3. Light emitting diodes
KSP 제안 키워드
5 mol%(MgO), PL intensity, Red emitting, White LED, Zinc-doped, crystal structure, light-emitting diode(LED), solid solutions