Spectroscopy of Trivalent Praseodymium in Barium Yttrium Fluoride

2004 ◽  
pp. 193-208 ◽  
Author(s):  
B. E. Bowlby ◽  
B. Di Bartolo
Keyword(s):  
Yttrium Fluoride ◽  
Barium Yttrium ◽  
Barium Yttrium Fluoride

scholarly journals Barium yttrium fluoride based upconversion nanoparticles as dual mode image contrast agents

2021 ◽  
pp. 111937
Author(s):  
Padmaja Parameswaran Nampi ◽  
Alexander Vakurov ◽  
Hema Viswambharan ◽  
Jürgen E. Schneider ◽  
Rik Drummond-Brydson ◽  
...  
Keyword(s):  
Contrast Agents ◽  
Image Contrast ◽  
Upconversion Nanoparticles ◽  
Dual Mode ◽  
Yttrium Fluoride ◽  
Barium Yttrium ◽  
Barium Yttrium Fluoride

Spectroscopic properties of heavily Ho 3+ -doped barium yttrium fluoride crystals

2015 ◽  
Vol 24 (9) ◽  
pp. 094216 ◽  
Author(s):  
En-Cai Ji ◽  
Qiang Liu ◽  
Ming-Ming Nie ◽  
Hui Luo ◽  
Yu-Xi Hu ◽  
...  
Keyword(s):  
Spectroscopic Properties ◽  
Yttrium Fluoride ◽  
Fluoride Crystals ◽  
Barium Yttrium ◽  
Barium Yttrium Fluoride

Spectroscopic properties of trivalent praseodymium in barium yttrium fluoride

2003 ◽  
Vol 102-103 ◽  
pp. 481-486 ◽  
Author(s):  
B. Di Bartolo ◽  
B.E. Bowlby
Keyword(s):  
Spectroscopic Properties ◽  
Yttrium Fluoride ◽  
Barium Yttrium ◽  
Barium Yttrium Fluoride

Role of intermediate phase formation in the preparation of barium yttrium oxide.cntdot.carbon dioxide (Ba4Y2O7.cntdot.CO2)

1992 ◽  
Vol 4 (1) ◽  
pp. 197-204 ◽  
Author(s):  
D. A. Warner ◽  
R. E. Riman
Keyword(s):  
Phase Formation ◽  
Intermediate Phase ◽  
Barium Yttrium

SEM analysis of interactions between Pt, Au, and AgPd capsules and barium-yttrium-copper superconductors

1989 ◽  
Vol 8 (1-2) ◽  
pp. 59-63 ◽  
Author(s):  
Jennifer R. Verkouteren
Keyword(s):  
Sem Analysis ◽  
Barium Yttrium

Energy Transfers in Holmium and Yttrium Fluoride

1978 ◽  
pp. 553-558
Author(s):  
J. F. Pouradier ◽  
F. E. Auzel
Keyword(s):  
Yttrium Fluoride ◽  
Energy Transfers

scholarly journals Multi-Step Crystallization and Chemical Evolution of Sodium Yttrium Fluoride

2021 ◽  
Author(s):  
Peter Pauzauskie ◽  
Alexander Bard ◽  
R. Greg Felsted ◽  
Abbie Ganas ◽  
Anupum Pant ◽  
...  
Keyword(s):  
Solid Phase ◽  
Nucleation And Growth ◽  
Intermediate Step ◽  
Gradual Change ◽  
Fluoride Ions ◽  
Aqueous Synthesis ◽  
Yttrium Fluoride ◽  
New Perspective ◽  
Step Mechanism ◽  
Step Crystallization

Abstract Two-step crystallization mechanisms based on spinodal decomposition followed by nucleation are commonly observed both in the laboratory and in nature. While this pathway may require chemical reactions, subsequent nucleation and growth are often considered as separate, discrete events from the reaction itself. Recent work has also shown a distinct intermediate step involving the formation of an amorphous aggregate. Here we report a novel four-step mechanism in the aqueous synthesis of sodium yttrium fluoride involving 1) the segregation of aqueous ions into a dense liquid phase, 2) the formation of an amorphous aggregate, 3) nucleation of a cubic YF3 phase, and 4) subsequent solid-state diffusion of sodium and fluoride ions to form a final NaYF4 phase. The final step involves a continuous, gradual change of the solid phase’s chemical stoichiometry from YF3 toward NaYF4. Unlike previously studied nucleation and growth mechanisms, the stoichiometry of the final solid phase evolves throughout the crystallization process rather than being determined at nucleation. This novel four-step mechanism provides a new perspective into the nucleation and growth of many other crystalline materials given the ubiquity of nonstoichiometric compounds in nature.

A new bimetallic barium yttrium oxo alkoxide Ba2Y4(μ6-O)(μ3-OEt)6(μ3-OH)2(dpm)6·2EtOH: structural characterization and thermal behavior

1997 ◽  
Vol 255 (2) ◽  
pp. 289-294 ◽  
Author(s):  
Philippe Miele ◽  
Gisèle Foulon ◽  
Nadine Hovnanian
Keyword(s):  
Thermal Behavior ◽  
Structural Characterization ◽  
Barium Yttrium

X-ray investigation of barium yttrium cuprate (Ba2YCu3O6)

1988 ◽  
Vol 27 (5) ◽  
pp. 871-873 ◽  
Author(s):  
Mary F. Garbauskas ◽  
R. W. Green ◽  
R. H. Arendt ◽  
J. S. Kasper
Keyword(s):  
X Ray ◽  
Barium Yttrium
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