Luminescence Properties of the Yttrium and Gadolinium Tantalo-Niobates

2015 ◽  
Vol 230 ◽  
pp. 172-177 ◽  
Author(s):  
Olesia Voloshyna ◽  
Ianina Boiaryntseva ◽  
Dmitry Spassky ◽  
Oleg Sidletskiy
Keyword(s):  
Solid State ◽  
Synchrotron Radiation ◽  
Solid Solutions ◽  
Solid State Synthesis ◽  
Luminescence Properties ◽  
X Ray ◽  
Ceramic Samples

Ceramic samples of tantalo-niobates solid solutions with yttrium and gadolinium cations (RE(NbxTa1-x)O4, RE = Y or Gd, and x=0÷1) have been obtained by solid-state synthesis. Luminescence properties of yttrium and gadolinium tantalo-niobates under X-ray and synchrotron radiation, UV and VUV radiation have been studied in visible and UV spectral regions. The luminescence mechanisms in yttrium and gadolinium tantalo-niobates have been determined as well.

Synthesis and Luminescence Properties of KBi(MoO4)2:Eu3+

2015 ◽  
Vol 230 ◽  
pp. 160-165 ◽  
Author(s):  
K. Terebilenko ◽  
Mila Miroshnichenko ◽  
Inna Tokmenko ◽  
Vitalii Chornii ◽  
Yuriy Hizhnyi ◽  
...  
Keyword(s):  
Solid State ◽  
Ir Spectroscopy ◽  
Powder Diffraction ◽  
Solid Solutions ◽  
Spectral Region ◽  
Solid State Synthesis ◽  
Electronic Transitions ◽  
Luminescence Spectroscopy ◽  
X Ray ◽  
Dta Analysis

Polycrystalline KBi(MoO4)2 has been grown from molten system K-Bi-Mo-O. Solid solutions KBi1-xEux(MoO4)2 (x = 0.001 - 0.100) have been prepared by solid state synthesis and characterized by powder IR spectroscopy, DTA analysis, X-Ray powder diffraction and luminescence spectroscopy. It was found that all investigated Eu3+-containing molybdates reveal intensive photoluminescence lines related to f-f electronic transitions in Eu3+ ions. The KBi1-XEuX(MoO4)2 crystals with low Eu3+ concentration reveal also intrinsic host luminescence under excitation in the ultraviolet (UV) spectral region at T = 4.2 K.

Solid state synthesis of LiFePO4 studied by in situ high energy X-ray diffraction

2011 ◽  
Vol 21 (15) ◽  
pp. 5604 ◽  
Author(s):  
Zonghai Chen ◽  
Yang Ren ◽  
Yan Qin ◽  
Huiming Wu ◽  
Shengqian Ma ◽  
...  
Keyword(s):  
Solid State ◽  
High Energy ◽  
Solid State Synthesis ◽  
X Ray Diffraction ◽  
X Ray

Fluoride solid electrolytes: investigation of the tysonite-type solid solutions La1−xBaxF3−x (x < 0.15)

2015 ◽  
Vol 44 (45) ◽  
pp. 19625-19635 ◽  
Author(s):  
Johann Chable ◽  
Belto Dieudonné ◽  
Monique Body ◽  
Christophe Legein ◽  
Marie-Pierre Crosnier-Lopez ◽  
...  
Keyword(s):  
Solid State ◽  
Solid Solutions ◽  
Solid Electrolytes ◽  
Nitrogen Atmosphere ◽  
Solid State Synthesis ◽  
Subsequent Quenching

La1−xBaxF3−x solid solutions for x < 0.15 were prepared by solid state synthesis in a platinum tube under an nitrogen atmosphere with subsequent quenching for 0.07 ≤ x < 0.15.

X-ray scintillator Gd2O2S:Tb3+ materials obtained by a rapid and cost-effective microwave-assisted solid-state synthesis

2019 ◽  
Vol 777 ◽  
pp. 638-645 ◽  
Author(s):  
Ian Pompermayer Machado ◽  
Verônica Carvalho Teixeira ◽  
Cássio Cardoso Santos Pedroso ◽  
Hermi Felinto Brito ◽  
Lucas Carvalho Veloso Rodrigues
Keyword(s):  
Solid State ◽  
Cost Effective ◽  
Solid State Synthesis ◽  
X Ray ◽  
Microwave Assisted

Powder-diffraction data for several solid solutions with the compositions (CaxSr1−x)CuO2 and (CaxSr1−x)2CuO3

1995 ◽  
Vol 10 (4) ◽  
pp. 296-299 ◽  
Author(s):  
S. T. Misture ◽  
C. Park ◽  
R. L. Snyder ◽  
B. Jobst ◽  
B. Seebacher
Keyword(s):  
High Temperature ◽  
Solid State ◽  
Powder Diffraction ◽  
Solid Solutions ◽  
Diffraction Data ◽  
Solid State Reaction ◽  
High Temperature Superconductors ◽  
Powder Diffraction Data ◽  
X Ray ◽  
Diffraction Patterns

Several compositions of the solid solutions (CaxSr1−x)CuO2 and (CaxSr1−x)2CuO3, both of which are found as minor phases in the high-temperature superconductors, were prepared by solid-state reaction. X-ray powder-diffraction patterns for three compositions of (CaxSr1−x)CuO2 and two for (CaxSr1−x)2CuO3 are presented.

scholarly journals Symmetry lowering in crystalline solid solutions: a study of cinnamamide–thienylacrylamide by X-ray and neutron diffraction and solid-state photochemistry

1993 ◽  
Vol 95 ◽  
pp. 307-327 ◽  
Author(s):  
L. J. W. Shimon ◽  
M. Vaida ◽  
F. Frolow ◽  
M. Lahav ◽  
L. Leiserowitz ◽  
...  
Keyword(s):  
Solid State ◽  
Neutron Diffraction ◽  
Solid Solutions ◽  
Crystalline Solid ◽  
X Ray

Comparable Structural and Luminescent Characterization of the La1-xEuxVO4 Solid Solutions Synthesized by Solid State and Co-Precipitation Methods

2013 ◽  
Vol 200 ◽  
pp. 186-192 ◽  
Author(s):  
Oksana Chukova ◽  
Sergiy G. Nedilko ◽  
Sergiy A. Nedilko ◽  
Vasyl Sherbatsky ◽  
Tetiana Voitenko
Keyword(s):  
Solid State ◽  
Solid Solutions ◽  
Spectral Lines ◽  
Luminescence Properties ◽  
Luminescence Spectra ◽  
Excitation Spectra ◽  
Electron Transitions ◽  
Charge Transfer Transitions ◽  
The Matrix ◽  
Co Precipitation

Luminescence properties of the two series of the La1-xEuxVO4 (x ranges from to 0.3) solid solutions synthesized by the solid state and co-precipitation methods were investigated.. Luminescence spectra of the investigated samples consist of narrow spectral lines caused by inner f - f electron transitions in the impurity Eu3+ ions. Excitation spectra consist of three main bands those correspond to different types of transitions in the investigated matrices. There are O - Eu3+ charge transfer transitions, band-to-band transitions in the matrix of the vanadate compounds and electron transitions in the VO43- vanadate anion. Dependences of the structure and luminescence properties on rate compositions and method of synthesis were studied. Origins of the observed differences between luminescence characteristics of the samples obtained by two different methods are discussed.

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