Thermochemical and Luminescent Properties of RbVO3, CsVO3, and Rb0.5Cs0.5VO3 / Slobodin B. V.,Ishchenko A. V.,Samigullina R. F.,Teslenko O. S.,Shul'gin B. V.,Zhurakovskii D. Yu. // INORGANIC MATERIALS. - 2011. - V. 47, l. 10. - P. 1126-1131.

ISSN/EISSN:

0020-1685 / нет данных

Type:

Article

Abstract:

RbVO3, CsVO3, and Rb0.5Cs0.5VO3 have been synthesized by the Pechini process. The vanadates have an orthorhombic structure (sp. gr. Pbcm), melt congruently in the range 650-530 degrees C, and undergo a reversible phase transition in the range 520-340 degrees C. We have determined the onset temperatures and end points of the transformations at a temperature scan rate of 3 degrees C/min and their enthalpies, and measured the photo-, roentgeno-, and cathodoluminescence and diffuse reflectance spectra of the vanadates. The luminescence spectra each are well fitted with three pseudo-Voigt functions. CsVO3 has the highest integrated emission intensity. The emission intensity of the Rb0.5Cs0.5VO3 solid solution is lower than that of the simple vanadates because of the optical absorption around its intrinsic luminescence band. This may be due to the presence of stable vacancy-type structural defects in Rb0.5Cs0.5VO3.

Author keywords:

нет данных

DOI:

10.1134/S0020168511100190

Web of Science ID:

ISI:000296739200015

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	OCT
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
Research-Areas	Materials Science
Web-of-Science-Categories	Materials Science, Multidisciplinary
Author-Email	slobodin@ihim.uran.ru
ResearcherID-Numbers	Ishchenko, Aleksey/E-1017-2014
ORCID-Numbers	Ishchenko, Aleksey/0000-0002-9883-6652
Funding-Acknowledgement	RF Ministry of Education and Science {[}14.740.11.0070]; Russian Foundation for Basic Research {[}11-03-00097-a]
Funding-Text	This work was supported by the RF Ministry of Education and Science (federal targeted program Scientists and Teachers of Innovative Russia, 2009-2013, state contract no. 14.740.11.0070, September 6, 2010) and the Russian Foundation for Basic Research (grant no. 11-03-00097-a).
Number-of-Cited-References	10
Usage-Count-Last-180-days	3
Usage-Count-Since-2013	22
Journal-ISO	Inorg. Mater.
Doc-Delivery-Number	844HV