PREPARATION AND SPECTROSCOPIC PROPERTIES OF LaP3O9:Ce,Tb PHOSPHORS

Chinese Journal of Applied Chemistry ›› 1993, Vol. 0 ›› Issue (2): 70-72.

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PREPARATION AND SPECTROSCOPIC PROPERTIES OF LaP₃O₉:Ce,Tb PHOSPHORS

Gao Xin, Hong Guangyan, Liu Shuzhen, Li Youmo

Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 130022 Changchun

Received:1992-03-20 Revised:1992-11-10 Published:1993-04-10 Online:1993-04-10

Abstract

Abstract: Pure phase LaP₃O₉:Ce, Tb phosphors have been prepared by precipitation from solution followed by subsequent igniting. They are of cyclic structure and belong to the orthorhombic crystal system with space group C_222₁. The spectra of LaP₃O₉:Ce, LaP₃O₉:Tb and LaP₃O₉:Ce,Tb have been measured. It was observed that Ce³⁺ can effectively transfer its energy to Tb³⁺, greatly enhancing the emission of Tb³⁺. From the results obtained it can be argued that LaP₃O₉:Ce,Tb might be a new green-emitting phosphor of high efficientcy.

Key words: lanthanum phosphate, cerium ion, terbium ion, energy transfer, phosphor, preparation

Gao Xin, Hong Guangyan, Liu Shuzhen, Li Youmo. PREPARATION AND SPECTROSCOPIC PROPERTIES OF LaP₃O₉:Ce,Tb PHOSPHORS[J]. Chinese Journal of Applied Chemistry, 1993, 0(2): 70-72.

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PREPARATION AND SPECTROSCOPIC PROPERTIES OF LaP₃O₉:Ce,Tb PHOSPHORS

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