Jorge García‐Sevillano

One-pot synthesis and PAA-functionalization of uniform Ln:LaVO4 (Ln: Eu, Nd) nanophosphors with high colloidal stability and biocompatibility

Nuria Ofelia Nuñez, Paola Zambrano, Jorge García‐Sevillano, Eugenio Cantelar et autres

Trabajo presentado a la 7th International Colloids Conference, celebrada en Barcelona (España) del 18 al 21 de junio de 2018.

Uniform Poly(acrylic acid)‐Functionalized Lanthanide‐Doped LaVO4 Nanophosphors with High Colloidal Stability and Biocompatibility

Nuria Ofelia Nuñez, Paola Zambrano, Jorge García‐Sevillano, Eugenio Cantelar et autres

Abstract Ln‐doped (Ln = Eu or Nd) LaVO4 nanoparticles functionalized with poly(acrylic acid) (PAA) were prepared from lanthanide and vanadate precursors in the presence of PAA by a simple one‐pot method that consists of a homogeneous precipitation reaction in ethylene glycol/water at …

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One‐Step Synthesis and Polyacrylic Acid Functionalization of Multifunctional Europium‐Doped NaGdF4 Nanoparticles with Selected Size for Optical and MRI Imaging

Nuria Ofelia Nuñez, M. Helena García, Jorge García‐Sevillano, Sara Rivera‐Fernández et autres

Abstract Multifunctional Eu:NaGdF4 nanospheres functionalized with polyacrylic acid (PAA) polymer have been prepared for the first time by a simple one‐pot method that consists of a homogeneous precipitation reaction at 120 °C. The size of the nanospheres, which were polycrystalline and crystallized …

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Up-conversion in Er3+/Yb3+ co-doped LaPO4 submicron-sized spheres

Jorge García‐Sevillano, Eugenio Cantelar, F. Cussó, Manuel Ocaña

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Template-free synthesis and luminescent properties of hollow Ln:YOF (Ln = Eu or Er + Yb) microspheres

E. Martinez-Castro, Jorge García‐Sevillano, F. Cussó, Manuel Ocaña

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New Single-Phase, White-Light-Emitting Phosphors Based on δ-Gd2Si2O7 for Solid-State Lighting

Alberto José Fernández-Carrión, Manuel Ocaña, Jorge García‐Sevillano, Eugenio Cantelar et autres

Two new white-light (WL)-emitting phosphors (δ-Gd 2 Si 2 O 7:Dy and δ-Gd 2 Si 2 O 7:Eu,Tb) have been synthesized by the sol–gel method. The Gd-Ln 3+ (Ln 3+ = Dy 3+, Tb 3+, Eu 3+ ) energy-transfer band has been …

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Quantification of energy transfer processes in LiLa_9(SiO_4)_6O_2:Er^3+/Yb^3+ under selective Er^3+ excitation

Martina Marín-Dobrincic, Jorge García‐Sevillano, Marco Bettinelli, Fabio Piccinelli et autres

The energy transfer mechanisms between Er3+ and Yb3+ ions have been investigated in LiLa9(SiO4)6O2 under selective Er3+ excitation. IR emission spectra, measured in the CW excitation regime, were used to establish a relationship between the macroscopic transfer and back transfer parameters. These …

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Crystal Structures and Photoluminescence across the La2Si2O7–Ho2Si2O7 System

Alberto José Fernández-Carrión, Mathieu M. B. Allix, Manuel Ocaña, Jorge García‐Sevillano et autres

It is well-known that when an RE2Si2O7 matrix is doped with active lanthanide ions, it displays promising luminescent responses for optical applications. The crystalline structure adopted by the silicate matrix as well as the distribution of the dopants among the available RE …

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Crystal Structure and Luminescent Properties of Eu3+-Doped A-La2Si2O7 Tetragonal Phase Stabilized by Spray Pyrolysis Synthesis

Alberto José Fernández-Carrión, Manuel Ocaña, Pierre Florian, Jorge García‐Sevillano et autres

Pure A-La 2 Si 2 O 7 powder has been synthesized through a spray pyrolysis method followed by calcination at 1100 °C for 15 h. The crystallographic structure, refined from the synchrotron powder diffraction pattern of the sample, showed tetragonal symmetry with …

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LaPO4:Er microspheres with high NIR luminescent quantum yield

Jorge García‐Sevillano, Eugenio Cantelar, A. Justo, Manuel Ocaña et autres

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Synthesis and functionalization of biocompatible Tb:CePO4 nanophosphors with spindle-like shape

Sonia Rodriguez‐Liviano, Francisco J. Aparicio, Ana Isabel Becerro, Jorge García‐Sevillano et autres

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Solvent‐Controlled Synthesis and Luminescence Properties of Uniform Eu:YVO4 Nanophosphors with Different Morphologies

Nuria Ofelia Nuñez, Jad Sabek, Jorge García‐Sevillano, Eugenio Cantelar et autres

Abstract A facile solvothermal route has been developed for the preparation of tetragonal europium‐doped yttrium orthovanadate nanoparticles (Eu:YVO4) and is based on a homogeneous precipitation reaction at 120 °C from solutions of rare earth precursors (yttrium acetylacetonate and europium nitrate) and sodium …

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