VERFAHREN ZUR SYNTHESE VON NANOKRISTALLINEN LEUCHTSTOFFPARTIKELN UND GEMÄSS DIESEM VERFAHREN ERHÄLTLICHE NANOKRISTALLINE LEUCHTSTOFFPARTIKEL

The present invention relates to a process for the targeted synthesis of inorganic phosphor particles which have a particle diameter from 1 to 100 nm, a virtually monodisperse size distribution in the range of ±20% and, depending on the class of material selected, a quantum yield of at least 20%, inorganic phosphor particles obtainable by this process and also their use for coating or embedding in a substrate selected from the group consisting of a paper, polymer, glass, metal or ceramic substrate, for example for diagnostics, therapy, as contrast agent, as marking, safety feature, for illumination and for data storage and/or data reproduction. A particular advantage of the phosphor particles which can be obtained according to the invention is, inter alia, that the particles have a surface finish which allows agglomerate-free redispersion in polar and nonpolar solvents or dispersion media. The choice of the dispersion medium allows the physicochemical properties of the phosphor particles which can be obtained according to the invention to be specifically matched to the requirements of a particular application.