Improved photon upconversion photoluminescence and intrinsic optical bistability from a rare earth co-doped lanthanum oxide phosphor via Bi3+ doping

2018 ◽  
Vol 42 (9) ◽  
pp. 7272-7282 ◽  
Author(s):  
R. S. Yadav ◽  
S. J. Dhoble ◽  
S. B. Rai
Keyword(s):  
Rare Earth ◽  
Optical Bistability ◽  
Lanthanum Oxide ◽  
Upconversion Photoluminescence ◽  
Intrinsic Optical Bistability ◽  
Co Doped

An Er3+, Yb3+, Bi3+ co-doped La2O3 phosphor shows upconverted emission and intrinsic optical bistability properties.

Towards intrinsic optical bistability of rare earth ion pairs in solids

2001 ◽  
Vol 344 (5-6) ◽  
pp. 612-618 ◽  
Author(s):  
O. Guillot-Noël ◽  
L. Binet ◽  
D. Gourier
Keyword(s):  
Rare Earth ◽  
Optical Bistability ◽  
Ion Pairs ◽  
Rare Earth Ion ◽  
Intrinsic Optical Bistability

Tunable emissions via the white region from Sr2Gd8(SiO4)6O2:RE3+ (RE3+: Dy3+, Tm3+, Eu3+) phosphors

2016 ◽  
Vol 40 (7) ◽  
pp. 6214-6227 ◽  
Author(s):  
Gattupalli Manikya Rao ◽  
G. Seeta Rama Raju ◽  
Sk. Khaja Hussain ◽  
E. Pavitra ◽  
P. S. V. Subba Rao ◽  
...  
Keyword(s):  
Rare Earth ◽  
White Light ◽  
Host Lattice ◽  
Rare Earth Ions ◽  
White Region ◽  
Light Region ◽  
Trivalent Rare Earth ◽  
Co Doped

Sr2Gd8(SiO4)6O2 is an excellent host lattice for tunable emissions via the white-light region when co-doped with suitable trivalent rare-earth ions.

Synthesis of Lanthanum Oxide Using Hydrogen Peroxide as Auxiliary Reagent by Spray Pyrolysis Method

2014 ◽  
Vol 1081 ◽  
pp. 38-42
Author(s):  
Zhen Feng Wang ◽  
Wen Yuan Wu ◽  
Xue Bian ◽  
Shou Feng Xue
Keyword(s):  
Hydrogen Peroxide ◽  
Rare Earth ◽  
Spray Pyrolysis ◽  
Reaction Temperature ◽  
High Purity ◽  
Chloride Solution ◽  
Lanthanum Oxide ◽  
Lanthanum Chloride ◽  
Spray Pyrolysis Method ◽  
The Rare Earth

With lanthanum chloride solution as raw material, and use the hydrogen peroxide of clean and pollution-freeobtained from oxidation reaction as auxiliary reagent, and with the carrier gas together form spray pyrolysis to obtain lanthanum oxide. On the one hand, in the hydrogen peroxide system, the temperature of direct pyrolysis reaction of lanthanum chloride solution decreased obviously, The reaction temperature is decreased from 1280°C to 1000°C or less. That reduce the energy consumption and simplify the requirements of pyrolysis equipment technology. The production process does not use NH3.H2O and NaOH to precipitate. It does not produce the traditional process of NH4+, Na+ to pollute water. It can greatly reduce the damage to the environment, and can product with high yield, high purity of the rare earth oxide. This method not only applies to the pyrolysis of the rare earth chloride solution, also applies to metal chloride solution, such as FeCl3, AlCl3, NiCl2. It was shown that the reaction temperature has been effectively reduced, VLaCl3: VH2O2 with 1: 1.5 can get high purity of La2O3.

Recent advances in rare earth co-doped luminescent tungsten oxygen complexes

2021 ◽  
Author(s):  
Jingping Wang ◽  
Bing Yan ◽  
Hechen Wu ◽  
Pengtao Ma ◽  
Jingyang Niu
Keyword(s):  
Rare Earth ◽  
Recent Advances ◽  
Defense Technology ◽  
Lighting Application ◽  
Co Doped ◽  
Oxygen Complexes ◽  
Modern Industry

Rare earth (RE) materials have been employed in almost every corner of modern industry, such as lighting application, defense technology, industrial catalysis and so on. Particularly, RE-based tungsten oxygen complexes...

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