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Structural and Optical Characterization of Ytterbium Doped Lutetium Double Phosphates
Author(s) -
Guzik M.,
Legendziewicz J.,
Szuszkiewicz W.,
Walasek A.
Publication year - 2007
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200600224
Subject(s) - lutetium , ytterbium , excited state , alkali metal , luminescence , doping , analytical chemistry (journal) , emission spectrum , ternary operation , materials science , alkaline earth metal , lanthanide , chemistry , ion , inorganic chemistry , spectral line , atomic physics , yttrium , physics , optoelectronics , organic chemistry , chromatography , astronomy , computer science , metallurgy , programming language , oxide
Powder samples of the ternary phosphates A 3 Lu(PO 4 ) 2 :Yb 3+ (A = Na, Rb) have been synthesised by solid state reactions. The spectroscopic properties of Yb 3+ in double phosphate host lattices were investigated using absorption, emission and excitation spectra at 4, 10 and 293 K in the VUV to IR range. The results obtained for both types of phosphates are compared. Together with the fundamental 2 F 5/2 → 2 F 7/2 emission in the IR range, a broad band emission with two peaks in the UV region were observed in Yb 3+ ‐activated Na 3 Lu(PO 4 ) 2 . The second emission is due to a charge–transfer transition type. The influence of the alkali metal cation site of the host lattice on the luminescence properties was investigated. The tentative energy level scheme of the ground and excited 2 F J (J=7/2, 5/2) levels is described.