scholarly journals Photoluminescence properties of lamellar aggregates of titania nanosheets accommodating rare earth ions

2004 ◽  
Vol 85 (18) ◽  
pp. 4187-4189 ◽  
Author(s):  
Hao Xin ◽  
Renzhi Ma ◽  
Lianzhou Wang ◽  
Yasuo Ebina ◽  
Kazunori Takada ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Ions ◽  
Photoluminescence Properties

The distribution of rare earth ions in a γ-Ga2O3 nanocrystal-silicate glass composite and its influence on the photoluminescence properties

2018 ◽  
Vol 6 (12) ◽  
pp. 2944-2950 ◽  
Author(s):  
Zhigang Gao ◽  
Xiaosong Lu ◽  
Yushi Chu ◽  
Shu Guo ◽  
Lu Liu ◽  
...  
Keyword(s):  
Rare Earth ◽  
Silicate Glass ◽  
Glass Ceramic ◽  
Glassy Phase ◽  
Rare Earth Ions ◽  
Photoluminescence Properties ◽  
Glass Composite ◽  
Surface Doping ◽  
Phase Surface

The partitioning of rare earth ions (REs: Yb3+, Er3+, Eu3+ and Nd3+) in γ-Ga2O3 nanocrystals (NCs) precipitated in a nanostructured silicate glass ceramic is revealed, and the enrichment of REs in the NCs (bulk doping) rather than on the interfaces between the NCs and the surrounding glassy phase (surface doping) is differentiated.

Photoluminescence properties of Pr3+, Sm3+ and Tb3+ doped SrAlSi4N7 and energy level locations of rare-earth ions in SrAlSi4N7

2014 ◽  
Vol 2 (37) ◽  
pp. 7952-7959 ◽  
Author(s):  
Zhi-Jun Zhang ◽  
Otmar M. ten Kate ◽  
Anneke Delsing ◽  
Pieter Dorenbos ◽  
Jing-Tai Zhao ◽  
...  
Keyword(s):  
Rare Earth ◽  
High Temperature ◽  
Solid State ◽  
Energy Level ◽  
Solid State Reaction ◽  
Solid State Reaction Method ◽  
Rare Earth Ions ◽  
Photoluminescence Properties ◽  
Reaction Method

RE3+ (RE = Pr, Sm, and Tb)-doped SrAlSi4N7 samples were synthesized by a solid-state reaction method at high temperature, and their photoluminescence properties were investigated.

Photoluminescence properties of multilayer oxide films intercalated with rare earth ions by the layer-by-layer technique

2006 ◽  
pp. 3619 ◽  
Author(s):  
Shintaro Ida ◽  
Kazuhiko Araki ◽  
Ugur Unal ◽  
Kazuyoshi Izawa ◽  
Ozge Altuntasoglu ◽  
...  
Keyword(s):  
Rare Earth ◽  
Oxide Films ◽  
Rare Earth Ions ◽  
Layer By Layer ◽  
Photoluminescence Properties ◽  
Layer Technique ◽  
Layer By Layer Technique

Synthesis and Photoluminescence Properties of Niobate Layered Oxides Intercalated with Rare Earth Ions by Electrostatic Self-Assembly Methods

2007 ◽  
Vol 470 (1) ◽  
pp. 393-402 ◽  
Author(s):  
Shintaro Ida ◽  
Ugur Unal ◽  
Kazuyoshi Izawa ◽  
Chikako Ogata ◽  
Taishi Inoue ◽  
...  
Keyword(s):  
Rare Earth ◽  
Self Assembly ◽  
Rare Earth Ions ◽  
Photoluminescence Properties ◽  
Layered Oxides

Characterization of Rare-Earth Fluoride Anti-Stokes Phosphors by Scanning arid Transmission Electron Microscopy

1971 ◽  
Vol 29 ◽  
pp. 142-143
Author(s):  
N. M. P. Low ◽  
L. E. Brosselard
Keyword(s):  
Electron Microscopy ◽  
Rare Earth ◽  
Elevated Temperatures ◽  
Stoichiometric Composition ◽  
Rare Earth Ions ◽  
Crystalline Solid ◽  
Precipitation Process ◽  
Rare Earth Fluoride ◽  
Earth Fluoride ◽  
Rare Earth Fluorides

There has been considerable interest over the past several years in materials capable of converting infrared radiation to visible light by means of sequential excitation in two or more steps. Several rare-earth trifluorides (LaF3, YF3, GdF3, and LuF3) containing a small amount of other trivalent rare-earth ions (Yb3+ and Er3+, or Ho3+, or Tm3+) have been found to exhibit such phenomenon. The methods of preparation of these rare-earth fluorides in the crystalline solid form generally involve a co-precipitation process and a subsequent solid state reaction at elevated temperatures. This investigation was undertaken to examine the morphological features of both the precipitated and the thermally treated fluoride powders by both transmission and scanning electron microscopy.Rare-earth oxides of stoichiometric composition were dissolved in nitric acid and the mixed rare-earth fluoride was then coprecipitated out as fine granules by the addition of excess hydrofluoric acid. The precipitated rare-earth fluorides were washed with water, separated from the aqueous solution, and oven-dried.

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