Solvent-assisted selective synthesis of NaLaF4 and LaF3 fluorescent nanocrystals via a facile solvothermal approach

被引：13

作者：

Wang, Zhe ^{[1
]}

Liu, Chenghui ^{[1
]}

Wang, Yucong ^{[1
]}

Li, Zhengping ^{[1
]}

机构：

[1] Hebei Univ, Coll Chem & Environm Sci, Baoding 071002, Peoples R China

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2011年 / 509卷 / 05期

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Nanostructured materials; Optical materials; Chemical synthesis; NaLaF4; nanorod; Luminescence; POLYOL-MEDIATED SYNTHESIS; CONVERSION; SIZE;

D O I：

10.1016/j.jallcom.2010.10.101

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A facile solvothermal approach was developed to selectively synthesize water-soluble NaLaF4 or LaF3 nanocrystals (NCs) by tuning the solvent components. In ethonal/H2O media, high-quality LaF3 NCs were prepared by using NaF and LaCl3 as the precursors. More interestingly, thermodynamically non-preferred NaLaF4 nanorods could be obtained when ethylenediamide (EN) was introduced to the ethonal/H2O solvent. All of the products were characterized by X-ray diffraction (XRD) and transmission electron microscopy (TEM), and the crucial effects of EN on morphology and structure of the NCs were studied. Furthermore, by doping different lanthanide ions, these LaF3 and NaLaF4 NCs could emit intense upconversion (UC) or downconversion (DC) fluorescence, which showed potential applications in color displays, light-emitting diodes, optical storage and optoelectronics. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：1964 / 1968

页数：5

共 21 条

[1] Homogeneous precipitation of cerium dioxide nanoparticles in alcohol/water mixed solvents [J].

Chen, HI ;

Chang, HY .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2004, 242 (1-3) :61-69

[2] Synthesis of rod-, twinrod-, and tetrapod-shaped CdS nanocrystals using a highly oriented solvothermal recrystallization technique [J].

Chen, M ;

Xie, Y ;

Lu, J ;

Xiong, YJ ;

Zhang, SY ;

Qian, YT ;

Liu, XM .

JOURNAL OF MATERIALS CHEMISTRY, 2002, 12 (03) :748-753

[3] Hydrothermal synthesis of one-dimensional ZnO nanostructures with different aspect ratios [J].

Cheng, B ;

Samulski, ET .

CHEMICAL COMMUNICATIONS, 2004, (08) :986-987

[4] Ionic Liquid-Based Approach to Monodisperse Luminescent LaF3:Ce,Tb Nanodiskettes: Synthesis, Structural and Photoluminescent Properties [J].

Guo, Hai ;

Zhang, Tian ;

Qiao, YanMin ;

Zhao, LeiHong ;

Li, ZhengQuan .

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2010, 10 (03) :1913-1919

[5] Rare earth fluoride nano-/microcrystals: synthesis, surface modification and application [J].

Li, Chunxia ;

Lin, Jun .

JOURNAL OF MATERIALS CHEMISTRY, 2010, 20 (33) :6831-6847

[6] Solvothermal elemental direct reaction to CdE (E = S, Se, Te) semiconductor nanorod [J].

Li, YD ;

Liao, HW ;

Ding, Y ;

Fan, Y ;

Zhang, Y ;

Qian, YT .

INORGANIC CHEMISTRY, 1999, 38 (07) :1382-1387

[7] Size and morphology controllable synthesis of oil-dispersible LaF3:Yb,Er upconversion fluorescent nanocrystals via a solid-liquid two-phase approach [J].

Liu, Chenghui ;

Sun, Jia ;

Wang, Hui ;

Chen, Depu .

SCRIPTA MATERIALIA, 2008, 58 (02) :89-92

[8] Controlled synthesis of hexagon shaped lanthanide-doped LaF3 nanoplates with multicolor upconversion fluorescence [J].

Liu, Chenghui ;

Chen, Depu .

JOURNAL OF MATERIALS CHEMISTRY, 2007, 17 (37) :3875-3880

[9] Monodisperse, size-tunable and highly efficient β-NaYF4:Yb,Er(Tm) up-conversion luminescent nanospheres: controllable synthesis and their surface modifications [J].

Liu, Chenghui ;

Wang, Hui ;

Li, Xiao ;

Chen, Depu .

JOURNAL OF MATERIALS CHEMISTRY, 2009, 19 (21) :3546-3553

[10] High-quality sodium rare-earth fluoride nanocrystals: Controlled synthesis and optical properties [J].

Mai, Hao-Xin ;

Zhang, Ya-Wen ;

Si, Rui ;

Yan, Zheng-Guang ;

Sun, Ling-Dong ;

You, Li-Ping ;

Yan, Chun-Hua .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (19) :6426-6436

← 1 2 3 →