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Journal of Nanomaterials
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Journal of Nanomaterials
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2019
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Article
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Fig 2
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Research Article
Synthesis and Application in Anticounterfeiting of RGB Upconversion Nanoparticles
Figure 2
(a) The XRD of NaYF
4
:Yb
3+
,Tm
3+
NPs and a standard card (JCPDS: 28-1192). (b) The SEM image of NaYF
4
:Yb
3+
,Tm
3+
NPs.
(a)
(b)