Low temperature synthesis of SrS:Ce phosphor by carbothermal reduction method: Influence of sulfur and charge compensator on the luminescent properties

2007 ◽  
Vol 42 (4) ◽  
pp. 753-761 ◽  
Author(s):  
P. Thiyagarajan ◽  
M. Kottaisamy ◽  
M.S. Ramachandra Rao
Keyword(s):  
Low Temperature ◽  
Carbothermal Reduction ◽  
Reduction Method ◽  
Luminescent Properties ◽  
Low Temperature Synthesis ◽  
Temperature Synthesis ◽  
Carbothermal Reduction Method ◽  
Charge Compensator

Low Temperature Synthesis and Luminescent Properties of Ca2SnO4: Eu3

2010 ◽  
Vol 136 ◽  
pp. 14-17 ◽  
Author(s):  
Yu Zhong Li ◽  
Xiao Chun Zhou
Keyword(s):  
Low Temperature ◽  
Spherical Shape ◽  
Luminescent Properties ◽  
Xrd Analysis ◽  
Electric Dipole Transition ◽  
Low Temperature Synthesis ◽  
Temperature Synthesis ◽  
X Ray ◽  
Emission Transition ◽  
Red Emitting Phosphor

A novel red emitting phosphor, Ca2SnO4: Eu3+, was prepared by the low temperature solid state reaction. X-ray powder diffraction (XRD) analysis confirmed the formation of Ca2SnO4: Eu3+. Scanning electron-microscopy (SEM) observation indicated a narrow size distribution of about 500 nm for the particles with spherical shape. Under 396 nm excitation, the Ca2SnO4: Eu3+ phosphor exhibits novel red emission at about 613 nm which is assigned to the 5D0→7F2 electric-dipole transition. Furthermore, the emission transition 5D0→7F2 has been found to be more prominent over the normal orange emission transition 5D0→7F1.

Glycerol Mediated Low Temperature Synthesis of Nickel Nanoparticles by Solution Reduction Method

2011 ◽  
Vol 11 (6) ◽  
pp. 5131-5136 ◽  
Author(s):  
Kalpana Singh ◽  
KunalH. Kate ◽  
V. V. Satayanarayana Chilukuri ◽  
P. K. Khanna
Keyword(s):  
Low Temperature ◽  
Nickel Nanoparticles ◽  
Reduction Method ◽  
Low Temperature Synthesis ◽  
Temperature Synthesis

Low temperature synthesis of ZrB2 powder synergistically by borothermal and carbothermal reduction

Rare Metals ◽  
2011 ◽  
Vol 30 (S1) ◽  
pp. 548-551 ◽  
Author(s):  
Haijie Lou ◽  
Ruixing Li ◽  
Yun Zhang ◽  
Yanshan Jiang ◽  
Bin Zhao ◽  
...  
Keyword(s):  
Low Temperature ◽  
Carbothermal Reduction ◽  
Low Temperature Synthesis ◽  
Temperature Synthesis

scholarly journals Низкотемпературный синтез стеклокерамики с кристаллитами YNbO-=SUB=-4-=/SUB=- : Eu-=SUP=-3+-=/SUP=-

2021 ◽  
Vol 129 (2) ◽  
pp. 207
Author(s):  
В.А. Кравец ◽  
Е.В. Иванова ◽  
К.Н. Орехова ◽  
Г.А. Гусев ◽  
В.В. Васькевич ◽  
...  
Keyword(s):  
Low Temperature ◽  
Electron Probe ◽  
Glass Ceramics ◽  
Luminescent Properties ◽  
X Ray Diffraction ◽  
Low Temperature Synthesis ◽  
Temperature Synthesis ◽  
X Ray ◽  
Composition And Structure ◽  
First Time

The main purpose of this work was to carry out a low-temperature synthesis of glass ceramics containing YNbO4:Eu3+ crystallites and to study the structural and luminescent properties of the obtained samples. Within the framework of this work, the inclusions that crystallized under the conditions of low-temperature synthesis in the systems of SiO2-Na2O-K2O-Y2O3-Nb2O5-Eu2O3 (SiNaK) and B2O5-Na2O-Y2O3-Nb2O5-Eu2O3 (BNa) were investigated for the first time. It was shown that YNbO4: Eu3+ crystallized in both considered systems. In the SiNaK system the crystallization of SiO2 also occurred (quartz, crisstabolite, and tridymite) under the selected conditions. The BNa system proved to be the most promising for the synthesis of activated glass-ceramics with YNbO4, since the required crystallites crystallized only in ithis system. The luminescent properties of crystalline inclusions were investigated using the local cathodoluminescence technique. The composition and structure of glass ceramics were studied by electron-probe microanalysis and X-ray diffraction phase analysis.

Synthesis and Luminescent Properties of Porous YVO4:Sm Nanoplates

2009 ◽  
Vol 620-622 ◽  
pp. 541-544 ◽  
Author(s):  
Ju An Wang ◽  
Yun Hua Xu ◽  
Qihong Cen ◽  
Xiao Man Zhang ◽  
Ya Ru Cui
Keyword(s):  
Low Temperature ◽  
Ethylene Glycol ◽  
Luminescence Intensity ◽  
Annealing Temperature ◽  
Luminescent Properties ◽  
Precipitation Method ◽  
Low Temperature Synthesis ◽  
Temperature Synthesis ◽  
Preparation Methods ◽  
Co Precipitation

The present research describes a simple low-temperature synthesis route of fabricating porous YVO4:Sm nanoplates via a chemical co-precipitation method using commercially available Y2O3, NH4VO3, Sm2O3 and ethylene glycol as the reacting precursors. The as-synthesized YVO4:Sm was thermally treated at 300°C and 600°C for 2 h which is much lower than that of the conventional preparation methods. The obtained samples were characterized by FTIR, XRD, TEM and PL. The photoluminescence measurement revealed that the luminescence intensity was significantly increased with increasing annealing temperature.

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