Eu^2+, Nd^3+를 도핑시킨 BaAl2O4 형광체의 광학 및 장잔광특성

• 영문명: Optical and Long After-Glow Characteristics of Eu^2+, Nd^3+ doped BaAl2O4 Phosphorescent Crystals
• 발행기관: 한국응용과학기술학회 (구.한국유화학회)
• 저자명: 김정환(Kim JeongHwan) 김병규(Kim ByungGyu) 이동규(Lee DongKyu)
• 간행물 정보: 『한국응용과학기술학회지』한국유화학회지 제19권 제3호, 174~180쪽, 전체 7쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2002.09.30

영문 초록

In recent days, the study of a new phosphorescent phosphor has been performed in order to overcome the defect of sulfide phosphor and increase the brightness and long after-glow characteristic of phosphorescent phosphor. Particularly, sulfide phosphor usually used is so chemically unstable that the study of oxide phosphors are processing. Eu^2+, Nd^3+ doped Ba-Al-O phosphors sintered at 600 sim1500^circC for 2hours had the PL emission spectrum and after-glow over 1200^{circ}C. In this system, as the mole concentration of alumina increases, emission bands of phosphors moved from 500nm to 380nm. The optimum concentration of flux was 5wt% and after-glow characteristics of phosphors were found at the host material molar ratio (BaCO3:Al2O3), 1:1 and 1:3.

키워드

phosphors photoluminescence BaAl2O4 rare earth metals trap