Fast luminescence from rare-earth-codoped BaSiF6 nanowires with high aspect ratios

2018 ◽  
Vol 6 (27) ◽  
pp. 7285-7294 ◽  
Author(s):  
Gibin George ◽  
Shanell L. Jackson ◽  
Zariana R. Mobley ◽  
Bhoj R. Gautam ◽  
Dong Fang ◽  
...  
Keyword(s):  
Rare Earth ◽  
Decay Time ◽  
Aspect Ratios ◽  
Rare Earth Doped

Solvothermally synthesized rare-earth-doped superlong BaSiF6 nanowires with high aspect ratios with subnanosecond decay time.

scholarly journals Luminescence characteristics of rare-earth-doped barium hexafluorogermanate BaGeF6 nanowires: fast subnanosecond decay time and high sensitivity in H2O2 detection

RSC Advances ◽  
2018 ◽  
Vol 8 (69) ◽  
pp. 39296-39306 ◽  
Author(s):  
Gibin George ◽  
Machael D. Simpson ◽  
Bhoj R. Gautam ◽  
Dong Fang ◽  
Jinfang Peng ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earths ◽  
Decay Time ◽  
High Sensitivity ◽  
H2o2 Detection ◽  
Highly Sensitive ◽  
Inorganic Scintillators ◽  
Luminescence Characteristics ◽  
Rare Earth Doped

The decay time of BaGeF6 nanowires codoped with rare earths is found in the order of subnanoseconds, being one of the shortest decay time records from inorganic scintillators. Their luminescence emissions are highly sensitive for H2O2 detection.

Synthesis and sintering of rare-earth-doped ceria powder by the oxalate coprecipitation method

1999 ◽  
Vol 14 (3) ◽  
pp. 957-967 ◽  
Author(s):  
Kenji Higashi ◽  
Kazutoshi Sonoda ◽  
Hiroshi Ono ◽  
Soichiro Sameshima ◽  
Yoshihiro Hirata
Keyword(s):  
Electron Microscopy ◽  
Rare Earth ◽  
Oxalic Acid ◽  
Solid Solutions ◽  
Nitrate Solution ◽  
Doped Ceria ◽  
Powder Preparation ◽  
Oxide Powders ◽  
Aspect Ratios ◽  
Rare Earth Doped

Doped ceria, which has a higher oxygen ion conductivity than yttria-stabilized zirconia, is one of the possible electrolytes for solid oxide fuel cell at low temperatures. This study concerns powder preparation and densification of rare-earth-doped ceria. Rare-earth-doped ceria powders with a composition of Ce0.8R0.2O1.9(R = Yb, Y, Gd, Sm, Nd, and La) were prepared by heating the oxalate coprecipitate when a mixed rare earth/cerium nitrate solution was added to an oxalic solution. The oxalate and derived-oxide powders were characterized by x-ray diffraction (XRD), thermogravimetry differential thermal analysis (TG-DTA), particle size analyzer with laser diffraction, inductively coupled plasma (ICP), transmission electron microscopy (TEM), and scanning electron microscopy (SEM). This method provided the oxalate solid solutions containing Ce and R, which were calcined to form the oxide solid solutions at 600 °C in air. The lattice parameter of oxide powders increased linearly with increasing ionic radius of doped rare earth. The size of platelike particles of oxalates and oxides depended on the concentration of oxalic acid and showed a minimum at 0.4 M oxalic acid. Dry milling of oxide powder with α–Al2O3ball was effective in reducing the size and aspect ratios of particles with little contamination of Al2O3. These rare-earth-doped ceria powders with various sizes were formed by uniaxial pressing (49 MPa) followed by cold isostatic pressing (294 MPa), and sintered at 900–1600 °C in air for 4 h. The micrometer-sized-doped CeO2 powders were densified above 95% of the theoretical density at 1200 °C. The grain size of rare-earth-doped ceria after sintering at 1600 °C was larger in the samples with the larger rare-earth element.

Waveguide amplifiers in rare-earth doped glasses : fabrication, characterisation [MATH] modelling

1994 ◽  
Vol 04 (C4) ◽  
pp. C4-277-C4-280 ◽  
Author(s):  
B. HYDE ◽  
D. BARBIER ◽  
J. HUBNER ◽  
J.-M. JOUANNO ◽  
A. KEVORKIAN ◽  
...  
Keyword(s):  
Rare Earth ◽  
Waveguide Amplifiers ◽  
Doped Glasses ◽  
Rare Earth Doped

SYNTHESIS AND PHOTOLUMINESCENCE STUDIES OF RARE EARTH DOPED [1.5%] CaO

2019 ◽  
Vol 7 (3) ◽  
pp. 37
Author(s):  
JITESH CHANDRAPAL SHARMA ◽  
K. SURESH ◽  
Y. H. GANDHI ◽  
K. V. R. MURTHY ◽  
◽  
...  
Keyword(s):  
Rare Earth ◽  
Photoluminescence Studies ◽  
Rare Earth Doped

Improving VCSEL's & Rare-Earth-Doped Led's.

1998 ◽  
Author(s):  
hyatt M. Gibbs ◽  
Galina Khitrova
Keyword(s):  
Rare Earth ◽  
Rare Earth Doped

Enhanced electron correlation in rare-earth doped Ca3Co4O9

2010 ◽  
Vol 97 (6) ◽  
pp. 062114 ◽  
Author(s):  
Yang Wang ◽  
Luxiang Xu ◽  
Yu Sui ◽  
Xianjie Wang ◽  
Jinguang Cheng ◽  
...  
Keyword(s):  
Rare Earth ◽  
Electron Correlation ◽  
Rare Earth Doped
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