Synthesis of Green-Emitting Phosphor Y3Al5O12: Tb, Ce, Gd by Sol-Gel Method

2007 ◽  
Vol 336-338 ◽  
pp. 610-612
Author(s):  
Li Min Dong ◽  
Zhi Dong Han ◽  
Ze Wu ◽  
Xian You Zhang
Keyword(s):  
Yttrium Aluminum Garnet ◽  
Sol Gel ◽  
Spherical Shape ◽  
High Irradiance ◽  
Gel Method ◽  
Sol Gel Method ◽  
Luminescence Efficiency ◽  
Yttrium Aluminum ◽  
Fine Size ◽  
Sintering Condition

Green-emitting Y3Al5O12: Tb phosphor materials have been widely studied because of their high luminescence efficiency and stability under the conditions of high irradiance with an electron beam. In this paper, Green-emitting phosphor of yttrium aluminum garnet (Y3Al5O12 or YAG) doped with Tb3+, Ce3+ and Gd3+ was synthesized by sol-gel method. By means of TG/DSC, XRD, and photoluminescence (PL) performance, the sintering condition and its influence on the powder’s emitting performance were studied. The experimental results showed that, Y2.8Tb0.12 Ce0.08-x GdxAl5O12 synthesized by sol-gel method was a kind of phosphor of good performance. When the value of x was set at 0.04, the best emitting performance was obtained. The Y3Al5O12: Tb, Ce, Gd particles had fine size, spherical shape, filled morphology, high crystallinity, and good brightness.

Preparation and grain-growth of chromia-yttrium aluminum garnet composites fibers by sol–gel method

2017 ◽  
Vol 83 (2) ◽  
pp. 275-280 ◽  
Author(s):  
Xiaoling Ma ◽  
Zhenlin Lv ◽  
Hongbin Tan ◽  
Jiao Nan ◽  
Caixia Wang ◽  
...  
Keyword(s):  
Grain Growth ◽  
Yttrium Aluminum Garnet ◽  
Sol Gel ◽  
Gel Method ◽  
Sol Gel Method ◽  
Yttrium Aluminum

Synthesis of yttrium aluminum garnet (YAG) by a new sol–gel method

2004 ◽  
Vol 379 (1-2) ◽  
pp. L1-L3 ◽  
Author(s):  
Zhihong Sun ◽  
Duorong Yuan ◽  
Haoqiang Li ◽  
Xiulan Duan ◽  
Haiqing Sun ◽  
...  
Keyword(s):  
Yttrium Aluminum Garnet ◽  
Sol Gel ◽  
Gel Method ◽  
Sol Gel Method ◽  
Yttrium Aluminum

Kinetics and formation mechanism of yttrium aluminum garnet from an amorphous phase prepared by the sol–gel method

2015 ◽  
Vol 41 (9) ◽  
pp. 10616-10623 ◽  
Author(s):  
Alexander M. Kutyin ◽  
Elena Ye. Rostokina ◽  
Evgeny M. Gavrishchuk ◽  
Victor V. Drobotenko ◽  
Alexander D. Plekhovich ◽  
...  
Keyword(s):  
Amorphous Phase ◽  
Formation Mechanism ◽  
Yttrium Aluminum Garnet ◽  
Sol Gel ◽  
Gel Method ◽  
Sol Gel Method ◽  
Yttrium Aluminum

Comparative Study on the Microstructure and Photoluminescence Properties of SnO2 Nano Particles Prepared by Different Methods

2015 ◽  
Vol 719-720 ◽  
pp. 132-136 ◽  
Author(s):  
Ghazaleh Allaedini ◽  
Siti Masrinda Tasirin ◽  
Meor Zainal Meor Talib ◽  
Payam Aminayi ◽  
Ifa Puspasari
Keyword(s):  
Sol Gel ◽  
Spherical Shape ◽  
Nano Particles ◽  
Precipitation Method ◽  
Photoluminescence Properties ◽  
X Ray Diffraction ◽  
Gel Method ◽  
Sol Gel Method ◽  
Significant Difference ◽  
Co Precipitation

This study presents comparisons between the morphologies and photoluminescence properties of tin oxide (SnO2) nanoparticles prepared by two methods, namely the sol gel and the co-precipitation methods. The characteristics of the particles were analyzed using X-ray diffraction (XRD), fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). The particles prepared using the sol-gel method have a finer particle size and more spherical shape. However, no significant difference was observed in terms of morphology and homogeneity in the samples produced by either the co-precipitation or sol-gel methods. In contrast, the photoluminescence study shows that the emission peak for powder prepared using the sol-gel method was higher than that of the co-precipitation method.

A rietveld study of the cation substitution between uvarovite and yttrium-aluminum synthetic garnets, obtained by sol-gel method

1994 ◽  
Vol 29 (3) ◽  
pp. 387-391 ◽  
Author(s):  
J. Carda ◽  
M. A. Tena ◽  
G. Monros ◽  
V. Esteve ◽  
M. M. Reventos ◽  
...  
Keyword(s):  
Sol Gel ◽  
Cation Substitution ◽  
Gel Method ◽  
Sol Gel Method ◽  
Yttrium Aluminum

scholarly journals Dosimeter Based on YAG: Ce Phosphor via Sol-Gel Method for Online X-ray Radiation Monitoring

Crystals ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1567
Author(s):  
Yuheng Yan ◽  
Changfeng Zhang ◽  
Luchuan Zheng ◽  
Taiqi Wang ◽  
Mao Li ◽  
...  
Keyword(s):  
Yttrium Aluminum Garnet ◽  
Structural Characteristics ◽  
Sol Gel ◽  
Fluorescence Decay ◽  
Radiation Monitoring ◽  
Factors Affecting ◽  
Gel Method ◽  
X Ray ◽  
Sol Gel Method ◽  
Xrd Patterns

This paper focuses on the preparation of cerium-doped yttrium aluminum garnet (YAG: Ce) powder with several concentration gradients via the sol-gel method by detecting its structural characteristics via X-ray diffraction (XRD) patterns and scanning electron microscope (SEM) to verify the generation of a complete crystal phase and evenly distributed nanopowder. On this basis, the luminescence characteristics of Ce3+ are explored, the mechanism and model are discussed based on the spectra, and the ideal doping concentration was obtained by comparing the luminescence intensity along with the fluorescence quenching theory and fluorescence decay spectra of samples with different doping concentrations. Several radiation dosimeters based on YAG: Ce phosphors were made; the online radiation monitoring function was realized under the exposure of a standard X-ray source; the repeatability, accuracy, and sensitivity of the system were verified by experiments; and the factors affecting dosimeter response are discussed. This paper verifies the possibility of adhibiting YAG: Ce fluorescent powder for online X-ray monitoring, and lays the foundation for further research.

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