Structural and luminescence properties of yellow phosphors prepared by a modified sol–gel method

In our paper, yttrium aluminum garnet doped with cerium (YAG:Ce) and terbium aluminum garnet doped with cerium (TAG:Ce) yellow garnet phosphors were prepared by a modified sol–gel method, using oxide, nitride as raw materials and acetylacetone, dimethyl sulfoxide, cetrimonium bromide in the hydrolys...

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Bibliographic Details
Published in:MRS communications 2017-09, Vol.7 (3), p.721-727
Main Authors: Ţucureanu, Vasilica, Matei, Alina, Avram, Andrei, Popescu, Marian Cãtalin, Mihalache, Iuliana, Avram, Marioara, Mãrculescu, Cãtalin Valentin, Ţîncu, Bianca Cãtãlina, Volmer, Marius, Munteanu, Daniel
Format: Article
Language:English
Subjects:
Acetylacetone
Aluminum
Biomaterials
Cerium
Cetyltrimethylammonium bromide
Characterization and Evaluation of Materials
Dimethyl sulfoxide
Fluorescence
Fourier transforms
Heat treatment
Light emitting diodes
Lighting systems
Luminescence
Manufacturing
Materials Engineering
Materials Science
Methods
Morphology
Nanotechnology
Nitrates
Optical properties
Optoelectronics
Phosphors
Polymer Sciences
Process controls
R&D
Raw materials
Research & development
Research Letter
Research Letters
Sol-gel processes
Spectrometry
Terbium
Yttrium-aluminum garnet
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Summary:In our paper, yttrium aluminum garnet doped with cerium (YAG:Ce) and terbium aluminum garnet doped with cerium (TAG:Ce) yellow garnet phosphors were prepared by a modified sol–gel method, using oxide, nitride as raw materials and acetylacetone, dimethyl sulfoxide, cetrimonium bromide in the hydrolysis and condensation step. The thermal treatment of the phosphors was performed at 1100 °C in order to transform it from amorphous to crystalline garnet phase. Structural, morphological, and luminescence properties were studied by Fourier transform infrared spectrometry, x-ray diffraction, scanning electron microscopy, and fluorescence spectroscopy. The results show that the modified sol–gel method provides a feasible approach to produce YAG:Ce and TAG:Ce yellow phosphors for the optoelectronic applications.
ISSN:2159-6859
2159-6867
DOI:10.1557/mrc.2017.84