Structural Study of Europium Doped Gadolinium Polyphosphates LiGd(PO3)4 and Its Effect on Their Spectroscopic, Thermal, Magnetic, and Optical Properties
Joint Authors
Hammami, Saoussen
Boudjada, Nassira Chniba
Megriche, Adel
Source
International Journal of Analytical Chemistry
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-06-19
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Alkali metal-rare earth polyphosphates L i G d ( 1 - x ) E u x (PO3)4 (LGP:Eu3+) (where x= 0, 0.02 and 0.04) were synthesized by solid-state reaction.
The Rietveld refinement showed the following cell parameters: I 2/a space group, a=9.635 ( 3 ) Å, b=7.035 ( 3 ) Å, c=13.191 ( 3 ) Å, β=90.082°, V= 894.214Å3, and Z=4.
The similarity between R F =4.21% and R B =4.31% indicated that the realized refinement is reliable.
The crystal structure consists of infinite zig-zag chains of P O 4 3 - tetrahedra, linked by bridging oxygen.
The acyclic structure of polyphosphates is confirmed by infrared and Raman (IR) spectroscopies.
A good thermal stability up to 940°C and paramagnetic behavior of these compounds were also proved by thermal analyses and magnetic susceptibility measurements, respectively.
Excitation spectra revealed the charge transfer phenomenon between O 2 - and Eu3+ (CTB), the energy transfer from Gd3+ to Eu3+, and the intrinsic 4f-4f transitions of Eu3+ where the electronic transitions were also identified.
Moreover, LGP:Eu3+ can emit intense reddish orange light under excitation at 394 nm.
The strongest tow at 578 and 601 nm can be attributed to the transitions from excited state 5D0 to ground states 7F1 and 7F2, respectively.
American Psychological Association (APA)
Hammami, Saoussen& Boudjada, Nassira Chniba& Megriche, Adel. 2018. Structural Study of Europium Doped Gadolinium Polyphosphates LiGd(PO3)4 and Its Effect on Their Spectroscopic, Thermal, Magnetic, and Optical Properties. International Journal of Analytical Chemistry،Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1166382
Modern Language Association (MLA)
Hammami, Saoussen…[et al.]. Structural Study of Europium Doped Gadolinium Polyphosphates LiGd(PO3)4 and Its Effect on Their Spectroscopic, Thermal, Magnetic, and Optical Properties. International Journal of Analytical Chemistry No. 2018 (2018), pp.1-10.
https://search.emarefa.net/detail/BIM-1166382
American Medical Association (AMA)
Hammami, Saoussen& Boudjada, Nassira Chniba& Megriche, Adel. Structural Study of Europium Doped Gadolinium Polyphosphates LiGd(PO3)4 and Its Effect on Their Spectroscopic, Thermal, Magnetic, and Optical Properties. International Journal of Analytical Chemistry. 2018. Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1166382
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1166382