Quick synthesis, functionalization and properties of uniform, luminescent LuPO4-based nanoparticles

Description

The aim of this study was to find a surfactant-free method for the synthesis of uniform Eu:LuPO4 nanophosphors which are able to form stable colloidal suspensions in aqueous media. Uniform, ovoid Eu-doped LuPO4 fluorescent nanoparticles were obtained after aging for 30 minutes at 180ºC a butylene glycol solution containing, exclusively, lutetium acetate, europium acetate and H3PO4. XRD and digital diffraction patterns of HRTEM images suggested that the particles were single crystals in nature with the c-axis of the unit cell parallel to the long particle axis. The luminescence study revealed that the optimum doping level was 5 molar %. The latter particles (85 nm x 40 nm dimensions) were functionalized with polyacrylic acid and their colloidal stability in two different biological buffers was demonstrated to persist for at least 15 days

Abstract

MEC MAT2012-34919

Abstract

Junta de Andalucía JA FQM 06090

Abstract

CSIC 201460E005

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