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Journal of the Korean Chemical Society (JKCS)

ISSN 1017-2548(Print)
ISSN 2234-8530(Online)
Volume 33, Number 1
JKCSEZ 33(1)
February 20, 1989

Title	Studies on the Fluorescence of Eu3+ and Tb3+ in Lanthanum Oxychloride 염화산화란탄에서 유로퓸(Ⅲ) 과 테르븀(Ⅲ)의 형광에 관한 연구
Author	Young Gu Ha, Taesam Kim 하영구, 김태삼
Keywords
Abstract	염화산화란탄(LaOCl) 결정속에서 La와 치환된 Eu3+와 Tb3+의 형광성질을 연구하였다. 자외선으로 들뜬 LaOCl의 형광세기를 활성제인 Eu3+와 Tb3+의 농도에 따라 고찰하였고, 이 현상을 활성제들 사이의 에너지 전달 과정으로 설명하였다. LaOCl 결정속에 Eu3+와 Tb3+를 같이 분포시키면 흡수된 에너지가 Tb3+에서 Eu3+로 전달됨을 보았다. 치환된 활성제의 양에 따른 형광세기의 변화와 쇄잔시간의 측정으로부터 이 사실을 확인하였다. The fluorescence of Eu3+, Tb3+ substituted for La3+ in Lanthanum Oxychloride (LaOCl) has been studied. The fluorescence intensity of the Eu3+, Tb3+ in LaOCl excited by Ultra-violet light were investigated on its activator concentration and discussed as the energy transfer process. The energy transfer from Tb3+ to Eu3+ take place in the Eu3+ and Tb3+ codoped LaOCl crystal. This process was confirmed to the change of concentration and the measurement of fluorescence decay time.
Page	82 - 89
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