Colloidal Synthesis of Luminescent Rhabdophane LaPO4:Ln3+·xH2O (Ln = Ce, Tb, Eu; x ≈ 0.7) Nanocrystals
Chemistry of Materials2004Vol. 16(19), pp. 3767–3773
Citations Over TimeTop 10% of 2004 papers
Valérie Buissette, Mélanie Moreau, Thierry Gacoin, Jean‐Pierre Boilot, Jean‐Yves Chane‐Ching, Thierry Le Mercier
Abstract
Lanthanide phosphate nanocrystals exhibiting the rhabdophane-type structure and mean particle sizes below 10 nm are synthesized by hydrolysis of an aqueous mixture of sodium tripolyphosphate (Na5P3O10) and lanthanide salts. 31P NMR studies show that polyphosphate groups act both as a source of orthophosphate and as complexing agents to, respectively, crystallize and stabilize LnPO4·xH2O (x ≈ 0.7) nanoparticles. In the ternary system (Ln = La, Ce, and Tb), polyphosphate-capped particles form well-dispersed and highly luminescent aqueous colloids which are promising for applications in light-emitting devices.
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