Synthesis, crystal structure and luminescence properties of CaY2-xEuxGe3O10 (x=0-2) / Lipina Olga A.,Surat Ludmila L.,Melkozerova Marina A.,Tyutyunnik Alexander P.,Leonidov Ivan I.,Zubkov Vladimir G. // JOURNAL OF SOLID STATE CHEMISTRY. - 2013. - V. 206, l. . - P. 117-121.

ISSN/EISSN:

0022-4596 / 1095-726X

Type:

Article

Abstract:

The novel red emitting phosphors based on CaY2-xEuxGe3O10 (x=0-2) have been prepared using both a conventional solid-state reaction and a synthesis route via EDTA-complexing process. Powder XRD study has revealed that CaY2-xEuxGe3O10 (x=0.1-0.8, 2.0) crystallizes in the monoclinic space group P2(1)/c, Z=4. The trivalent europium ions occupy three different sites (4e) with the C-1 symmetry. The phosphors exhibit a strong red emission under excitations at 250 nm and 393 nm. The light emission efficiency depends on the excitation wavelength, the activator content and the method of synthesis. Appropriate CIE chromaticity coordinates for CaY1.7Eu0.3Ge3O10 are x=0.54 and y=0.29. (C) 2013 Elsevier Inc. All rights reserved.

Author keywords:

Luminescence; Germanates; Electron microscopy; Spectroscopy RARE-EARTH IONS; LIGHT-EMITTING-DIODES; SOL-GEL; PHOTOLUMINESCENCE PROPERTIES; CA3Y2SI3O12 PHOSPHORS; ENERGY-TRANSFER; EXCITATION; TB3+; CE3+; CA3SC2SI3O12

DOI:

10.1016/j.jssc.2013.08.002

Web of Science ID:

ISI:000326007800019

Соавторы в МНС:

Другие поля

Поле	Значение
Month	OCT
Publisher	ACADEMIC PRESS INC ELSEVIER SCIENCE
Address	525 B ST, STE 1900, SAN DIEGO, CA 92101-4495 USA
Language	English
EISSN	1095-726X
Keywords-Plus	RARE-EARTH IONS; LIGHT-EMITTING-DIODES; SOL-GEL; PHOTOLUMINESCENCE PROPERTIES; CA3Y2SI3O12 PHOSPHORS; ENERGY-TRANSFER; EXCITATION; TB3+; CE3+; CA3SC2SI3O12
Research-Areas	Chemistry
Web-of-Science-Categories	Chemistry, Inorganic \& Nuclear; Chemistry, Physical
Author-Email	tarasova@ihim.uran.ru
ResearcherID-Numbers	Leonidov, Ivan/I-6576-2013 Tyutyunnik, Alexander/P-2230-2015
ORCID-Numbers	Leonidov, Ivan/0000-0002-6635-4747
Funding-Acknowledgement	RFBR {[}13-03-00047a]; UB RAS {[}12-P-3-1003, 12-T-3-1009, 13-3-NP-686]
Funding-Text	This work was supported by RFBR (grant No. 13-03-00047a) and UB RAS (grant Nos. 12-P-3-1003, 12-T-3-1009, 13-3-NP-686). The structural studies were carried out at the multiple-access center for X-ray structure analysis at the Institute of Solid State Chemistry, UB RAS (Ekaterinburg, Russia).
Number-of-Cited-References	42
Usage-Count-Last-180-days	2
Usage-Count-Since-2013	16
Journal-ISO	J. Solid State Chem.
Doc-Delivery-Number	239FK