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Patent
Title
Fluoreszierende Materialien
Other Title
Fluorescent material for use in photonic(s) and optical systems, etc. - comprises a matrix based on silicic acid condensates and/or organic polymers, contg. complexed praseodymium ions fixed on small particles.
Abstract
Fluorescent materials (M) with a matrix based on silicic acid (hetero)polycondensates (A) and / or organic polymers (B), contg. Pr3+ ions and opt. other additives. The Pr ions are complexed with cpd(s). (C) contg. electron-pair donor gp(s). and no oxygen atoms, the mole ratio of (Pr ions):(C) = (1:4) - (1:50), and the content of Pr ions in material (M) is 1 - 50 wt. %. Also claimed is a process for the prodn. of materials (M). USE - Used for the prodn. of coatings, mouldings, fibres and film, and for the prodn. of components for photonic and optical systems (claimed). ADVANTAGE - Provides Pr-contg. fluorescent materials with a high quantum yield and a low concn. quenching, despite the high concn. of Pr ions. The chemical and physical properties of these materials can be varied over a wide range as required for various applications, and the materials can be processed as mouldings, coatings, fibres etc.
Inventor(s)
Spanhel, L.
Wolter, H.
Neumann, G.
Popall, M.
Schmidt, T.
Patent Number
1995-19515755
Publication Date
1999
Language
German