Synthesis, luminescence properties, and growth mechanisms of YF 3 :Yb 3+ /Er 3+ nanoplates
Anisotropically structured upconversion nanocrystals capable of exhibiting bright upconversion emission properties are a promising new class of high performance optical materials. In this study, we investigate a facile synthetic method for the new nanoplate structure of YF 3 :Yb 3+ /Er 3+ with enhan...
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Published in | Journal of materials chemistry. C, Materials for optical and electronic devices Vol. 3; no. 39; pp. 10107 - 10113 |
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Main Authors | , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
2015
|
Online Access | Get full text |
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Summary: | Anisotropically structured upconversion nanocrystals capable of exhibiting bright upconversion emission properties are a promising new class of high performance optical materials. In this study, we investigate a facile synthetic method for the new nanoplate structure of YF
3
:Yb
3+
/Er
3+
with enhanced luminescence intensity. The shape of YF
3
:Yb
3+
/Er
3+
nanocrystals can be controlled by changing the synthesis conditions of the NaOH concentration, reaction time, and surfactant. The concentration of NaOH determines the final structure of YF
3
:Yb
3+
/Er
3+
. By increasing the NaOH concentration from 0.25 mmol to 2.5 mmol, YF
3
:Yb
3+
/Er
3+
nanoplates transform into NaYF
4
:Yb
3+
/Er
3+
nanoparticles; in the absence of NaOH, the nanoplate structure of YF
3
:Yb
3+
/Er
3+
changes to particles. The YF
3
:Yb
3+
/Er
3+
nanoplates show luminescence efficiency much greater than that of the spherical YF
3
:Yb
3+
/Er
3+
nanocrystals. |
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ISSN: | 2050-7526 2050-7534 |
DOI: | 10.1039/C5TC02034D |