A few synthesis techniques of Lu-based nanocrystalline phosphors will be presented and the structural variations between the products will be discussed. Preparation of lutetium oxide activated with various lanthanides using combustion synthesis will be presented and the influence of the organic fuel on the products characteristics will be shown. Homogeneous precipitation of RE-doped Lu hydroxide and its subsequent decomposition to oxide will be discussed together with some properties of the final products. Influence of surfactants addition on the route of the precipitation will be shown. Some basic information on the sintering properties of the various powders will be shown.
Depending on the synthesis technique the materials consists of particles whose sizes vary between 5-200 nm. The spectroscopic properties vary to some extend with the particles sizes. The most profound influence on the products characteristics is observed when surfactants are introduced to the solution where precipitation occurs. The surfactant may even alter the final product composition.

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