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학술지 Luminescence Enhancement by Ga3þ Codoping of BaTiO3: Pr3þ Phosphors
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저자
강승열, 김용해, 문제현, 서경수, 이동주, 강성구
발행일
200905
출처
Japanese Journal of Applied Physics, v.48 no.5, pp.0523011-0523014
ISSN
0021-4922
출판사
Japan Society of Applied Physics (JSAP), Institute of Physics (IOP)
DOI
https://dx.doi.org/10.1143/JJAP.48.052301
협약과제
08ZB1200, 정보통신 미래신기술연구사업(나노 기반 신개념 소자연구), 정태형
초록
The effects of dopant Pr and codopant Ga on the luminescence of BaTiO3 phosphors have been investigated. The maximum luminescence intensity of red emission was observed at a Pr concentration of 0.011 mol %, which is a much lower concentration than those in previous reports on the luminescence characteristics of phosphors. Ga codoping into BaTiO3:Pr3?닞 phosphors results in a marked increase in luminescence. This result has been interpreted from the viewpoint of symmetry, which makes the occurrence of band-to-band transition probable. © 2009 The Japan Society of Applied Physics.
KSP 제안 키워드
Applied physics, Band-to-band transition, Luminescence characteristics, Luminescence enhancement, Luminescence intensity, red emission