2023年10月1日 · After the BiOI shell is coated on LYT@LOYT core, the XRD pattern of LYT@LOYT@BiOI (Fig. 1 c) shows the peaks of both LYT@LOYT and BiOI. This result indicates that LYT@LOYT is successfully incorporated with BiOI. In addition, all XRD spectra are free of spurious peaks, indicating the high crystal purity of the prepared samples.

The Yb(3+) and Er(3+) codoped orthorhombic LuF3 rectangular nanocrystals (NCs) with the size of about 10nm were synthesized by a facile and effective solvothermal process.

LuF3 crystallizes in the trigonal P-3c1 space group. The structure is three-dimensional. Lu3+ is bonded in a 9-coordinate geometry to nine F1- atoms. There are a spread of Lu–F bond distances ranging from 2.23–2.45 Å. There are three inequivalent F1- sites.

2017年2月15日 · LuF 3 mesocrystals were successfully synthesized for the first time. The UC luminescence properties of LuF 3:Yb 3+ /Er 3+ /Tm 3+ were investigated in detail. The fluorescent intensity ratio (I Er /I Tm) decreases with increased temperature. The phosphor exhibits a high sensitivity of 20.6% K −1.

2011年6月1日 · Thirty millimeter diameter single crystal of Nd 3+ doped LuF 3 was grown using LiF as solvent. The single phase crystallization was confirmed by the powder X-ray diffraction, and high structural perfection was demonstrated by X-ray rocking curve (XRC) measurements. FWHM of XRC for 220 reflection was 32 arcsec.

Lutetium fluorides with different compositions, crystal phases, and morphologies, such as β-NaLuF 4 hexagonal microprisms, microdisks, mirotubes, α-NaLuF 4 submicrospheres, LuF 3 octahedra, and NH 4 Lu 2 F 7 icosahedra, prolate ellipsoids and spherical particles have been successfully synthesized via a facile hydrothermal route.

2015年1月28日 · The crystalline structure of the prepared particles was assessed by X-ray diffraction (XRD) using a Panalytical, X′ Pert Pro diffractometer (CuKα) with an X-Celerator detector over an angular range of 10° < 2θ < 70°, 2θ step width of 0.05°, and 10 s counting time. The crystallite size was calculated using the Scherrer formula from the ...

2015年12月1日 · The Yb(3+) and Er(3+) codoped orthorhombic LuF3 rectangular nanocrystals (NCs) with the size of about 10nm were synthesized by a facile and effective solvothermal process. X-ray diffraction (XRD), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), upcon …

2017年9月28日 · The optimum doping concentrations of Er 3+ and Yb 3+ for the highest emission intensity were determined by using X-ray diffraction (XRD) and photoluminescence (PL) analyses. Concentration dependent studies reveal that the optimal composition is 10% Yb 3+ and 2% Er 3+ co-doping concen-tration with a strong green emission.

Abstract The article describes the properties of LuF3 and NaLuF4 fluorides doped with Yb3+ and Er3+ or Tm3+ ions, their comparison and application in latent fingermarks imaging. The single-phase materials were successfully synthesized by the hydrothermal method.