Luminescent properties of LuAG:Ce phosphors with different Ce contents prepared by a sol–gel combustion method

2007 ◽  
Vol 29 (9) ◽  
pp. 1138-1142 ◽  
Author(s):  
Hui-Li Li ◽  
Xue-Jian Liu ◽  
Li-Ping Huang
Keyword(s):  
Sol Gel ◽  
Luminescent Properties ◽  
Combustion Method ◽  
Gel Combustion ◽  
Gel Combustion Method

Perovskite gels combustion synthesis from rare earth aluminates. Development of multifuncional properties.

MRS Advances ◽  
2020 ◽  
Vol 5 (62) ◽  
pp. 3301-3313
Author(s):  
A. Barrera ◽  
M.L. Chávez ◽  
E. Chavira ◽  
T.A. García ◽  
J.M.E. Carreto
Keyword(s):  
Particle Size ◽  
Rare Earth ◽  
Sol Gel ◽  
Luminescent Properties ◽  
Combustion Method ◽  
Ceramic Pigments ◽  
Material Development ◽  
Gel Combustion ◽  
Gel Combustion Method ◽  
Paramagnetic Properties

AbstractThe purpose of this work was the synthesis of the perovskites with rare earth, by gel combustion method with pigmenting, magnetic and luminescent properties. The synthesis of perovskite structure is important for material development, with multi features. In this work, the synthesis was from metal oxides by the method of combustion of gels at 500 °C, for 10 s. Color of perovskites obtained, with nanometric particle size (31-44 nm) was analysed by CIEL*a*b* with tonalities ranged from white to pink except for Pr-perovskites with yellow and brown. Its paramagnetic properties were verified by magnetic susceptibility. Its luminescence was at 260 nm, except for Pr-perovskites. This work opens an important opportunity to develop ceramic pigments with perovskites structures integrating other properties as luminescence and paramagnetism by combustion sol-gel method.

The Phase Composition of Re3+ (Re=Lu, Gd, La) Co-Doped YAG:Ce and its Luminescent Properties

2010 ◽  
Vol 663-665 ◽  
pp. 129-132 ◽  
Author(s):  
Le Zhang ◽  
Hao Yang ◽  
Peng De Han ◽  
Li Xi Wang ◽  
Qi Tu Zhang
Keyword(s):  
Phase Composition ◽  
Sol Gel ◽  
Luminescent Properties ◽  
Blue Shift ◽  
Combustion Method ◽  
Emission Peak ◽  
Garnet Structure ◽  
Gel Combustion ◽  
Gel Combustion Method ◽  
Co Doped

A series of Re3+ (Re=Lu, Gd, La) co-doped YAG phosphors were successfully synthesized by a sol-gel combustion method and characterized with XRD and photoluminescent spectrum. The phase composition and luminescent properties of YAG:Ce under different Re co-doped concentrations were investigated. Doping only 50 mol% of La3+ to replace Y3+ sites, the main phase of sample has transformed into LaAlO3. While the concentration of Gd3+ reached 90~99 mol%, it was still cubic YAG. Lu3+ could replace Y3+ ions completely with the garnet structure. The location of the emission peak of Gd-codoped YAG:Ce3+ shifted to red region 21 nm corresponding to the maximum emission intensity before the appearance of GdAlO3. In addition, it had a 24 nm blue shift when Y3+ replaced by Lu3+ completely.

Kinetics of nanocrystalline MgO growth by the sol–gel combustion method

2014 ◽  
Vol 185 ◽  
pp. 86-91 ◽  
Author(s):  
Alexandre R. Bueno ◽  
Renata F.M. Oman ◽  
Paula M. Jardim ◽  
Nicolás A. Rey ◽  
Roberto R. de Avillez
Keyword(s):  
Sol Gel ◽  
Combustion Method ◽  
Gel Combustion ◽  
Kinetics Of ◽  
Gel Combustion Method ◽  
Nanocrystalline Mgo

scholarly journals Synthesis of Blue-Green Phosphors Sr4Si3O8Cl4:Eu2+by Gel-Combustion Method and Their Luminescent Properties

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Yong-Qing Zhai ◽  
Li-Li Wang ◽  
Juan Chen ◽  
Shi-Hua Feng
Keyword(s):  
Broad Band ◽  
Orthorhombic Phase ◽  
Luminescent Properties ◽  
Combustion Method ◽  
Main Peak ◽  
X Ray Diffraction ◽  
Doping Amount ◽  
Gel Combustion ◽  
Main Emission Peak ◽  
Gel Combustion Method

Sr4Si3O8Cl4:Eu2+blue-green phosphors were synthesized by the gel-combustion method. The as-synthesized phosphors were analyzed and characterized by X-ray diffraction and fluorescence spectrophotometer. The results indicate that orthorhombic phaseSr4Si3O8Cl4:Eu2+has been formed after the precursor calcined at 900°C reductive temperature. The excitation spectrum ofSr4Si3O8Cl4:Eu2+is a broad band in the range of 250 ~ 450 nm and the main peak at 324 nm. The emission spectrum is also a broad band with the main emission peak at about 484 nm, which is ascribed to the typical 4f5d1to 4f7transition ofEu2+. Moreover, the effects of the concentration ofEu2+, the reductive temperature, and the doping amount ofMg2+on luminescent properties were discussed.

Synthesis of nanocrystalline Ca2Cu2Fe12O22 Y-type hexaferrites by the sol–gel combustion method in metal nitrates system

2018 ◽  
Vol 526 (1) ◽  
pp. 187-192 ◽  
Author(s):  
S. B. Bankar ◽  
N. S. Meshram ◽  
N. N. Sarkar ◽  
H. S. Ahamad ◽  
S. J. Dhobale ◽  
...  
Keyword(s):  
Sol Gel ◽  
Combustion Method ◽  
Metal Nitrates ◽  
Gel Combustion ◽  
Gel Combustion Method

Low temperature synthesis of wollastonite using sol–gel combustion method: In vitro bioactivity evaluation

2019 ◽  
Vol 33 (10) ◽  
pp. 1950081 ◽  
Author(s):  
Madeeha Riaz ◽  
Rehana Zia ◽  
Snudia Aslam ◽  
Alliya Qamar ◽  
Tousif Hussain ◽  
...  
Keyword(s):  
Low Temperature ◽  
Sol Gel ◽  
Calcium Nitrate ◽  
Combustion Method ◽  
Calcium Nitrate Tetrahydrate ◽  
In Vitro Bioactivity ◽  
Nitrate Tetrahydrate ◽  
Gel Combustion ◽  
Gel Combustion Method

In this paper, low temperature, economical sol–gel combustion method was adopted to synthesize wollastonite ceramic. Calcium nitrate tetrahydrate and tetraethyl orthosilicate were taken as source for Ca and Si, while citric acid and nitric acid were used as chelating/combustion agents. The yielded powder calcined at 600[Formula: see text]C for 4 h was characterized by FTIR, XRD and SEM techniques. Results showed that the citrate combustion method was the most efficient method to prepare wollastonite at low temperature. Moreover, in vitro bioactivity test performed in simulated body fluid (SBF) showed good bioactivity of synthesized wollastonite ceramics.

Preparation of SrTiO3Nanopowder via Sol-gel Combustion Method

2013 ◽  
Vol 455 (1) ◽  
pp. 29-34 ◽  
Author(s):  
Phiram Panthong ◽  
Thanawat Klaytae ◽  
Kanok Boonma ◽  
Sarawut Thountom
Keyword(s):  
Sol Gel ◽  
Combustion Method ◽  
Gel Combustion ◽  
Gel Combustion Method
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