Determination process for determining if quantum splitting phosp

Details Determination process for determining if quantum splitting phosp Determination process for determining if quantum splitting phosp

1997-02-28

1998-08-04

Bonner, Melissa

Compositions

Inorganic luminescent compositions

Compositions containing halogen; e.g., halides and oxyhalides

C09K 1100

Patent

active

057888833

ABSTRACT:
Quantum splitting phosphors with host lattices activated by praseodymium +3 where covalency of the Pr.sup.+3 -ligand bond is maintained so that the center of gravity of the Pr.sup.+3 4f5d band level is located above the .sup.1 S.sub.0 level and the host lattice has a band gap of greater than about 5 eV.

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Chem. Ab. 111:47511; Verwey et al, "Ultraviolet luminsecence of Pr.sup.+3 in a glass", J. Solid State Chem., vol. 80(1), pp. 152-156, 1989. no month.
Chem. Ab. 82:36905; Sommerdijk et al, "Luminescence of Pr.sup.+3 ion activated fluorides", J. Lumin., vol. 9(4), pp. 288-296, 1974. no month.
Chem. Ab. 80:139008; Sommerdijk et al, "Two phonon luminescence with ultraviolet excitation of trivalent praseodymium", J. Lumin., vol. 8(4), pp. 341-343, 1974. no month.
Chem. Ab. 120;310252; Ganem et al, "Excited-state dynamics of Pr.sup.3+ :LaCl.sub.3 ", J. Lumin., vol. 58(1-6), pp. 298-302, 1994. no month.
Chem. Ab. 123:96973; Merkle et al, "Spectroscopic study of Pr:Ca.sub.5 (PO.sub.4).sub.3 F and Pr:SrAl.sub.12 O.sub.19 as potential visible laser materials", OSA Proc. Adv. Solid-State Lasers, Proc. Top. Meet., ed. Fan et al, pp.361-366, 1994. no month.

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