Research Article
Oxalic Acid-Assisted Hydrothermal Synthesis and Luminescent of Hexagonal NaYF4:Ln3+ (Ln = Sm, Eu, Yb/Er) Micro/Nanoplates
Figure 8
(a) Room temperature emission spectrum (Ex slits = 2 nm, Em slits = 5 nm), (b) the decay curve of Sm3+ (4D4/2-6H7/2), and (c) the CIE chromaticity diagram for the NaYF4:3% Sm3+ samples.
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