Structural and photoluminescent properties of Zn2SiO 4:Mn2+ nanoparticles prepared by a protected annealing process

Caroline Bertail; Sébastien Maron; Valérie Buissette; Thierry Le Mercier; Thierry Gacoin; Jean Pierre Boilot

doi:10.1021/cm2005902

Structural and photoluminescent properties of Zn₂SiO ₄:Mn²⁺ nanoparticles prepared by a protected annealing process

Caroline Bertail
, Sébastien Maron
, Valérie Buissette
, Thierry Le Mercier
, Thierry Gacoin
, Jean Pierre Boilot

Rhodia Recherches

Research output: Contribution to journal › Article › peer-review

Abstract

This works presents a new method for the production of colloidal suspensions of Zn₂SiO₄:Mn (ZSM) luminescent nanoparticles. The process consists in achieving a high temperature solid state reaction among silica nanoparticles homogenously dispersed within a ZnO matrix in large excess. Highly crystalline, well dispersed nanoparticles are recovered as a colloidal suspension after dissolution of the ZnO matrix in slightly acidic water. Yellow emitting β-Zn₂SiO₄:Mn or green emitting α- Zn₂SiO₄:Mn are obtained depending on the reaction temperature (either 800 or 900 °C) and the Mn content. Zn _2-2xSiO₄:Mn_x particles with x up to 3% can be obtained with a maximum relative emission efficiency of about 16% as compared to a bulk ZSM phosphor reference. The principle of this new synthetic route opens a new field of investigation for the production of colloidal dispersion of refractory compounds with a high crystallinity.

Original language	English
Pages (from-to)	2961-2967
Number of pages	7
Journal	Chemistry of Materials
Volume	23
Issue number	11
DOIs	https://doi.org/10.1021/cm2005902
Publication status	Published - 14 Jun 2011

Keywords

Willemite
colloid
green phosphor
luminescence
nanomaterial
nanoparticles

Access to Document

10.1021/cm2005902

Cite this

@article{2272e8a9aa9c401ea0036a087f5ca9d4,

title = "Structural and photoluminescent properties of Zn2SiO 4:Mn2+ nanoparticles prepared by a protected annealing process",

abstract = "This works presents a new method for the production of colloidal suspensions of Zn2SiO4:Mn (ZSM) luminescent nanoparticles. The process consists in achieving a high temperature solid state reaction among silica nanoparticles homogenously dispersed within a ZnO matrix in large excess. Highly crystalline, well dispersed nanoparticles are recovered as a colloidal suspension after dissolution of the ZnO matrix in slightly acidic water. Yellow emitting β-Zn2SiO4:Mn or green emitting α- Zn2SiO4:Mn are obtained depending on the reaction temperature (either 800 or 900 °C) and the Mn content. Zn 2-2xSiO4:Mnx particles with x up to 3\% can be obtained with a maximum relative emission efficiency of about 16\% as compared to a bulk ZSM phosphor reference. The principle of this new synthetic route opens a new field of investigation for the production of colloidal dispersion of refractory compounds with a high crystallinity.",

keywords = "Willemite, colloid, green phosphor, luminescence, nanomaterial, nanoparticles",

author = "Caroline Bertail and S{\'e}bastien Maron and Val{\'e}rie Buissette and \{Le Mercier\}, Thierry and Thierry Gacoin and Boilot, \{Jean Pierre\}",

year = "2011",

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doi = "10.1021/cm2005902",

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T1 - Structural and photoluminescent properties of Zn2SiO 4:Mn2+ nanoparticles prepared by a protected annealing process

AU - Bertail, Caroline

AU - Maron, Sébastien

AU - Buissette, Valérie

AU - Le Mercier, Thierry

AU - Gacoin, Thierry

AU - Boilot, Jean Pierre

PY - 2011/6/14

Y1 - 2011/6/14

N2 - This works presents a new method for the production of colloidal suspensions of Zn2SiO4:Mn (ZSM) luminescent nanoparticles. The process consists in achieving a high temperature solid state reaction among silica nanoparticles homogenously dispersed within a ZnO matrix in large excess. Highly crystalline, well dispersed nanoparticles are recovered as a colloidal suspension after dissolution of the ZnO matrix in slightly acidic water. Yellow emitting β-Zn2SiO4:Mn or green emitting α- Zn2SiO4:Mn are obtained depending on the reaction temperature (either 800 or 900 °C) and the Mn content. Zn 2-2xSiO4:Mnx particles with x up to 3% can be obtained with a maximum relative emission efficiency of about 16% as compared to a bulk ZSM phosphor reference. The principle of this new synthetic route opens a new field of investigation for the production of colloidal dispersion of refractory compounds with a high crystallinity.

AB - This works presents a new method for the production of colloidal suspensions of Zn2SiO4:Mn (ZSM) luminescent nanoparticles. The process consists in achieving a high temperature solid state reaction among silica nanoparticles homogenously dispersed within a ZnO matrix in large excess. Highly crystalline, well dispersed nanoparticles are recovered as a colloidal suspension after dissolution of the ZnO matrix in slightly acidic water. Yellow emitting β-Zn2SiO4:Mn or green emitting α- Zn2SiO4:Mn are obtained depending on the reaction temperature (either 800 or 900 °C) and the Mn content. Zn 2-2xSiO4:Mnx particles with x up to 3% can be obtained with a maximum relative emission efficiency of about 16% as compared to a bulk ZSM phosphor reference. The principle of this new synthetic route opens a new field of investigation for the production of colloidal dispersion of refractory compounds with a high crystallinity.

KW - Willemite

KW - colloid

KW - green phosphor

KW - luminescence

KW - nanomaterial

KW - nanoparticles

U2 - 10.1021/cm2005902

DO - 10.1021/cm2005902

M3 - Article

AN - SCOPUS:79958779826

SN - 0897-4756

VL - 23

SP - 2961

EP - 2967

JO - Chemistry of Materials

JF - Chemistry of Materials

IS - 11