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Journal of Nanomaterials
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Journal of Nanomaterials
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2015
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Article
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Fig 6
/
Research Article
Multicolor Emission Tuning and Red/Green Ratio Enhancement of Yb
3+
/Er
3+
Codoped KGdF
4
Upconversion Nanoparticles
Figure 6
Schematic energy level of Yb
3+
and Er
3+
and their proposed energy transfer mechanisms in KGdF
4
UCNPs.