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Preparation and optical properties of green-emitting BaMoO4:Tb3+,Na+ nanophosphors for transparent displays

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Abstract

We prepared BaMoO4:Tb3+,Na+ nanophosphors from Ba-oleate and Tb-oleate complexes in a hexane-water bilayer system consisting of hexane and aqueous (NH4)6Mo7O24 solution by performing solvothermal reactions. A simple phase transfer method was used for the preparation of the Ba-oleate and Tb-oleate complexes in hexane from aqueous Ba(NO3)2 and Tb(NO3)3 solutions with the assistance of sodium oleate, oleic acid, and oleylamine. The brightest green-emitting nanophosphor was found to be Ba0.84MoO4:0.08Tb3+,0.08Na+ prepared at 120°C. The BaMoO4:Tb3+,Na+ nanophosphors have a mean size of 5.5 nm because of the use of surfactants as capping agents to produce hydrophobic nanophosphor surfaces. The BaMoO4:Tb3+,Na+ nanophosphor suspensions are transparent because of the resulting elimination of back-scattering. These BaMoO4:Tb3+,Na+ nanophosphors are excellent green-emitting phosphors that can be used in transparent displays.

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Authors and Affiliations

  1. Department of Chemistry, Dankook University, Gyeonggi-Do, 448-701, Korea

    Young-Sik Cho & Young-Duk Huh

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  1. Young-Sik Cho
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  2. Young-Duk Huh
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Correspondence to Young-Duk Huh.

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Cho, YS., Huh, YD. Preparation and optical properties of green-emitting BaMoO4:Tb3+,Na+ nanophosphors for transparent displays. Electron. Mater. Lett. 10, 1185–1189 (2014). https://doi.org/10.1007/s13391-014-4143-1

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  • DOI: https://doi.org/10.1007/s13391-014-4143-1

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