Standard XRD patterns for cubic (a) and orthorhombic (c) YF 3 …
A series of YF3: xEu3+ phosphors with leaf-like, spindle-like, pecan-like, and granular-like morphologies were obtained by changing the RE3+/NaF ratio via a microwave hydrothermal method.
The XRD spectrum of YF3:Eu³⁺ nanocrystals. - ResearchGate
The phase structure, surface functional groups, morphology and elements distribution of the samples were measured by X-ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR...
XRD patterns of YF3: Eu 3+ (2.5 mol.%) nanoparticles
XRD patterns of YF3: Eu 3+ (2.5 mol.%) nanoparticles before (black) and after (red) annealing in air (400 °C, 4 hours). The YF3: (Eu3+, Nd3+) nanoparticles (orthorhombic phase, D ~ 130 nm))...
Controlled synthesis of different morphological YF3 crystalline ...
2007年4月1日 · In this work, we synthesized crystalline particles of YF 3 with different phases (cubic, orthorhombic) and different morphologies (octahedron, bundle-like) by a simple precipitation method at room temperature by varying the fluoride source (NH 4 F, HF, or NH 4 F·HF) and the molar ratio of fluoride/Y 3+. 2. Experiment section.
Multiple morphologies of YF3: Eu3+ microcrystals ... - ScienceDirect
2016年1月1日 · The as-synthesized products were systematically characterized by X-ray powder diffractometer (XRD), thermal field emission scanning electron microscope (FE-SEM), high resolution transmission electron microscope (HRTEM), and …
Constructing multiform morphologies of YF: Er3+/Yb3+ up …
2017年4月1日 · The corresponding XRD patterns indicate that the pure orthorhombic phase YF 3 could be obtained after reacting for 6 h. Therefore, the optimal synthesize parameters for mono-dispersed and perfect truncated octahedral YF 3: Er 3+ /Yb 3+ micro-crystals are 180 °C for 24 h at the ratio of NH 4 F/Ln 3+ = 3.5.
YF_3:Eu^(3+)发光纳米束的制备与性能研究-【维普期刊官网】- 中 …
摘要 在CTAB辅助的水热条件下制备出YF3:Eu3+纳米束材料。 XRD分析表明:样品为结晶良好的正交相YF3。 TEM照片表明:所得样品直径为250nm,长度约为1000nm的YF3:Eu3+纳米束,且纳米束是由直径为20nm... 展开更多 在CTAB辅助的水热条件下制备出YF3:Eu3+纳米束材料。 XRD分析表明:样品为结晶良好的正交相YF3。 TEM照片表明:所得样品直径为250nm,长度约为1000nm的YF3:Eu3+纳米束,且纳米束是由直径为20nm,长度为100nm的纳米晶自组装而成。 SEAD显示 …
Phase Transformation and Intense 2.7 μm Emission from Er3+ Doped YF3 ...
2013年4月22日 · The crystalline structures of YF 3 and YOF submicron-crystals were observed using X-ray diffraction (XRD) on a D8 advance X-ray diffractometer (Bruker, Switzerland) with Cu Kα radiation (λ =...
XRD patterns of YF3: 0.1Eu³⁺ prepared at 180 °C for 1 h with …
Studying electronic structure plays a key role in improving the photoluminescence (PL) properties of materials. Therefore, the electronic structure of YF3: xEu3+ with different Eu3+ ions doping...
mp-2416: YF3 (orthorhombic, Pnma, 62) - Materials Project
YF3 is Cementite structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Y3+ is bonded in a 9-coordinate geometry to eight F1- atoms. There are a spread of Y–F bond distances ranging from …