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Ionothermal Synthesis of Lanthanide Tetrafluoride Nanoparticles Using Deep Eutectic Solvents

Published online by Cambridge University Press:  28 May 2015

Benjamin R. Furman ,
Robert D. Gutierrez  and
Charles K. Baker
Benjamin R. Furman
Affiliation:
Southwest Research Institute, 6220 Culebra Rd., San Antonio, TX 78238, U.S.A.
Robert D. Gutierrez
Affiliation:
Southwest Research Institute, 6220 Culebra Rd., San Antonio, TX 78238, U.S.A.
Charles K. Baker
Affiliation:
Southwest Research Institute, 6220 Culebra Rd., San Antonio, TX 78238, U.S.A.
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Abstract

We have developed a new method for controlling the size, crystallinity, and polydispersity of 100–2000 nm tetrafluoride phosphor particles. Five polyol-based deep eutectic solvents (DESs) were downselected out of a set of more than 130 candidates. We analyzed their benefits in synthesizing phosphor matrix particles of β-NaYF4, β-NaYbF4, and β-NaGdF4. We produced green (λmax = 540 nm) and blue/UV (λmax = 450 nm) upconverting phosphors in DES using Yb,Er and Yb,Tm codopants, respectively. The blue/UV phosphor reaction was scaled the up to 25 L, yielding nearly 400 g of high-quality, bright photoluminescent, β-phase product under mild conditions. We conclude that polyol-based DES systems offer a uniquely specialized and useful toolkit for phosphor synthesis.

Keywords

nucleation & growthparticulateoptical properties
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1804: Symposium RR – Solution Syntheses of Inorganic Functional/Multifunctional Materials , 2015 , pp. 25 - 30
Copyright
Copyright © Materials Research Society 2015 

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References

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