Growth Process and Upconversion Luminescence of NaLuF4:Yb3+/Tm3+ Nanocrystals

被引：0

作者：

Li Y.-Y. ^{[1
,2
]}

Li D.-G. ^{[1
]}

Zhang D. ^{[1
]}

Qin W.-P. ^{[1
]}

机构：

[1] College of Electronic Science & Engineering, Jilin University, Changchun

[2] School of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing

来源：

Qin, Wei-Ping (wpqin@jlu.edu.cn) | 2018年 / Editorial Office of Chinese Optics卷 / 39期

基金：

中国国家自然科学基金;

关键词：

Crystallinity; Growth process; NaLuF[!sub]4[!/sub; Small size; Upconversion;

D O I：

10.3788/fgxb20183906.0764

中图分类号：

学科分类号：

摘要：

In order to explore the growth process of NaLuF4 nanocrystals in detail, we prepared a series of NaLuF4:Yb3+/Tm3+ nanomaterials by using a self-developed automatic nanomaterial synthesizer which can precisely control the experimental parameters. The phase analysis of samples prepared at different reaction temperatures(285, 295, 305℃) shows that the NaLuF4 nanocrystals follow the similar growth law with the increase of reaction time. We can obtain pure β-NaLuF4 nanocrystals with small size (less than 50 nm), monodispersity, and narrow size distribution at different temperatures. On the other hand, we measured the upconversion spectra of β-NaLuF4:Yb3+/Tm3+ nano-materials which prepared under 285, 295, and 305℃. These results indicate that the luminescence intensity of samples increase first and then decrease with the increase of reaction temperature. In addition, the luminescence of sample in ultraviolet region is stronger than that of the near-infrared region. For example, the intensity of 361 nm emission peak is twice large compared to that of 800 nm emission peak, which makes the nano-material suitable for near-infrared excited ultraviolet sensitive materials. © 2018, Science Press. All right reserved.

引用

页码：764 / 770

页数：6

共 24 条

[1] Heer S., Kompe K., Gudel H.U., Et al., Highly efficient multicolour upconversion emission in transparent colloids of lanthanide-doped NaYF4 nanocrystals, Adv. Mater., 16, 23-24, pp. 2102-2105, (2004)
[2] Zhou J., Wu Z., Zhang Z., Et al., Study on an antiwear and extreme pressure additive of surface coated LaF3 nanoparticles in liquid paraffin, Wear, 249, 5, pp. 333-337, (2001)
[3] Wang X., Li Y., Fullerene-like rare-earth nanoparticles, Angew. Chem. Int. Ed., 42, 30, pp. 3497-3500, (2003)
[4] Sivakumar S., van Veggel F.C.M., Raudsepp M., Bright white light through up-conversion of a single NIR source from solgel-derived thin film made with Ln3+-doped LaF3 nanoparticles, J. Am. Chem. Soc., 127, 36, pp. 12464-12465, (2005)
[5] Cooke A., Jones D., Silva J., Et al., Ferromagnetism in lithium holmium fluoride-LiHoF4. I. Magnetic measurements, J. Phys. C: Solid State Phy., 8, 23, (1975)
[6] Choi B., Moon B., Seo H., Et al., Dielectric and ionic conduction properties in LiYF4 single crystals, Mater. Design, 21, 6, pp. 567-570, (2000)
[7] Ghosh S., Rosenbaum T., Aeppli G., Et al., Entangled quantum state of magnetic dipoles, Nature, 425, 6953, pp. 48-51, (2003)
[8] Liang L., Xu H., Su Q., Et al., Hydrothermal synthesis of prismatic NaHoF4 microtubes and NaSmF4 nanotubes, Inorg. Chem., 43, 5, pp. 1594-1596, (2004)
[9] Yi G., Lu H., Zhao S., Et al., Synthesis, characterization, and biological application of size-controlled nanocrystalline NaYF4: Yb, Er infrared-to-visible up-conversion phosphors, Nano Lett., 4, 11, pp. 2191-2196, (2004)
[10] Karbowiak M., Mech A., Bednarkiewicz A., Et al., Comparison of different NaGdF4: Eu3+ synthesis routes and their influence on its structural and luminescent properties, J. Phys. Chem. Solids, 66, 6, pp. 1008-1019, (2005)

← 1 2 3 →