摘要
In this paper, highly crystalline YF3:Yb3+/Ln 3+ (Ln = Er3+, Tm3+) microsheets were successfully synthesized by a surfactant-free molten salt method for the first time. The results indicated that the as-obtained samples belonged to orthorhombic system and exhibited microsheets morphology with side lengths of 30 to 80 μm and wall thickness from 1 to 1.5 μm. By changing the dopant's species (Ln3+), multicolor (yellow and blue) upconversion emission can be observed in YF3:Yb3+/Ln3+ microsheets under 980 nm laser diode (LD) excitation. The upconversion mechanisms in co-doping YF3 samples were analyzed in detail based on the emission spectra. Importantly, this approach not only proposes a new alternative in synthesizing such materials, but also opens the possibility to meet the increasing commercial demand.
源语言 | 英语 |
---|---|
文章编号 | 1350061 |
期刊 | Functional Materials Letters |
卷 | 6 |
期 | 6 |
DOI | |
出版状态 | 已出版 - 12月 2013 |