Research Article
Oxalic Acid-Assisted Hydrothermal Synthesis and Luminescent of Hexagonal NaYF4:Ln3+ (Ln = Sm, Eu, Yb/Er) Micro/Nanoplates
Figure 6
SEM image of NaYF4 product with different concentration of chelating agent, 200°C, 12 h, (Y3+) : (F−) = 1 : 6.5, pH = 6, = (a) 0; (b) 0.3; (c) 0.4; (d) 0.5.
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| (b) |
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