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

Published online by Cambridge University Press:  12 September 2017

Vasilica Ţucureanu ,
Alina Matei ,
Andrei Avram ,
Marian Cãtalin Popescu ,
Iuliana Mihalache ,
Marioara Avram ,
Cãtalin Valentin Mãrculescu ,
Bianca Cãtãlina Ţîncu ,
Marius Volmer  and
Daniel Munteanu
Vasilica Ţucureanu*
Affiliation:
National Institute for Research and Development in Microtechnologies, IMT-Bucharest, 126A, Erou Iancu Nicolae Street, 077190 Bucharest, Romania, http://www.imt.ro Department of Materials Science, Transilvania University of Brasov, 29 Eroilor Blvd, Brasov 500036, Romania
Alina Matei
Affiliation:
National Institute for Research and Development in Microtechnologies, IMT-Bucharest, 126A, Erou Iancu Nicolae Street, 077190 Bucharest, Romania, http://www.imt.ro
Andrei Avram
Affiliation:
National Institute for Research and Development in Microtechnologies, IMT-Bucharest, 126A, Erou Iancu Nicolae Street, 077190 Bucharest, Romania, http://www.imt.ro
Marian Cãtalin Popescu
Affiliation:
National Institute for Research and Development in Microtechnologies, IMT-Bucharest, 126A, Erou Iancu Nicolae Street, 077190 Bucharest, Romania, http://www.imt.ro
Iuliana Mihalache
Affiliation:
National Institute for Research and Development in Microtechnologies, IMT-Bucharest, 126A, Erou Iancu Nicolae Street, 077190 Bucharest, Romania, http://www.imt.ro
Marioara Avram
Affiliation:
National Institute for Research and Development in Microtechnologies, IMT-Bucharest, 126A, Erou Iancu Nicolae Street, 077190 Bucharest, Romania, http://www.imt.ro
Cãtalin Valentin Mãrculescu
Affiliation:
National Institute for Research and Development in Microtechnologies, IMT-Bucharest, 126A, Erou Iancu Nicolae Street, 077190 Bucharest, Romania, http://www.imt.ro
Bianca Cãtãlina Ţîncu
Affiliation:
National Institute for Research and Development in Microtechnologies, IMT-Bucharest, 126A, Erou Iancu Nicolae Street, 077190 Bucharest, Romania, http://www.imt.ro
Marius Volmer
Affiliation:
Electrical Engineering and Applied Physics Department, Transilvania University of Brasov, 29 Eroilor Blvd, Brasov 500036, Romania, http://www.unitbv.ro
Daniel Munteanu
Affiliation:
Department of Materials Science, Transilvania University of Brasov, 29 Eroilor Blvd, Brasov 500036, Romania
*
Address all correspondence to Vasilica Ţucureanu, at vasilica.tucureanu@imt.ro, vasilica.schiopu@gmail.com
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Abstract

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.

Type
Research Letters
Information
MRS Communications , Volume 7 , Issue 3 , September 2017 , pp. 721 - 727
Copyright
Copyright © Materials Research Society 2017 

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