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  • 09월 04일 13시 이후 : 초록수정 불가능, 일정확인 및 검색만 가능

Effects of La3+ and B3+ on Luminescence Properties of Green Oxynitride Phosphors for Light-Emitting Device

등록일
2009년 8월 14일 16시 11분 50초
접수번호
1296
발표코드
34P80포 이곳을 클릭하시면 발표코드에 대한 설명을 보실 수 있습니다.
발표시간
목 <발표Ⅰ>
발표형식
포스터
발표분야
물리화학
저자 및
공동저자
오성일, 강준길
충남대학교 화학과, Korea
We prepared green (Ba1-XAX)aBbSicOdNe:Eu2+,Cl- phosphors (A: divalent cation, B = La3+, B3+). And investigated their luminescence properties for white light-emitting diode (LED). These phosphors were synthesized by low-temperature solid-state reaction under a NH3 gas condition. Under 460 nm excitation, the phosphors produced green luminescence. The addition of B ( La3+ or B3+) greatly improved green luminescence. The peak position varied in the 510 ~ 530 nm region, depending on the mole fraction of B. The optimized phosphor was determined as producing the maximum luminescence intensity upon a 460-nm excitation. Furthermore, the optimized phosphors were fabricated with blue GaN LED and the chromaticity index of the phosphor-formulated GaN LED was investigated as a function of the wt % of the optimized phosphor.

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