A series of Sm3+ doped Lu2O3 nanoparticles have been synthesized via a simple co-precipitation method using oxalic acid as precipitant. The obtained compounds showed a platelet-like morphology with diameter ranging between 10 and 14 nm. The cell parameters increased with the increase of doping, due to the substitution of Lu3+ with larger Sm3+; also a progressive increase of the lattice strain has been induced. Sm3+ doped Lu2O3 nanoparticles showed interesting Vis and NIR emission, which was carefully evaluated together with lifetime measurements. In particular, the system with the lowest Sm3+ loading exhibited the best photoluminescence performances. Preliminary cell viability test evidenced that Sm3+ doped Lu2O3 nanoparticles are not toxic, underlining their potential application a NIR luminescent probes in bioimaging.
Locardi, F., Gianotti, E., Nelli, I., Caratto, V., Martinelli, A., Ferretti, M., et al. (2017). Facile synthesis of NIR and Visible luminescent Sm3+ doped lutetium oxide nanoparticles. MATERIALS RESEARCH BULLETIN, 86, 220-227 [10.1016/j.materresbull.2016.11.011].
Facile synthesis of NIR and Visible luminescent Sm3+ doped lutetium oxide nanoparticles
MARTINELLI, ANTONELLA;FASOLI, MAURO;MARTINI, MARCO;
2017
Abstract
A series of Sm3+ doped Lu2O3 nanoparticles have been synthesized via a simple co-precipitation method using oxalic acid as precipitant. The obtained compounds showed a platelet-like morphology with diameter ranging between 10 and 14 nm. The cell parameters increased with the increase of doping, due to the substitution of Lu3+ with larger Sm3+; also a progressive increase of the lattice strain has been induced. Sm3+ doped Lu2O3 nanoparticles showed interesting Vis and NIR emission, which was carefully evaluated together with lifetime measurements. In particular, the system with the lowest Sm3+ loading exhibited the best photoluminescence performances. Preliminary cell viability test evidenced that Sm3+ doped Lu2O3 nanoparticles are not toxic, underlining their potential application a NIR luminescent probes in bioimaging.
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