New Mixed Y0.5R0.5VO4 and RVO4:Bi Materials: Synthesis, Crystal Structure and Some Luminescence Properties

Autor:	Leonid Vasylechko, Andrii Tupys, Vasyl Hreb, Volodymyr Tsiumra, Iryna Lutsiuk, Yaroslav Zhydachevskyy
Jazyk:	angličtina
Rok vydání:	2018
Předmět:	mixed orthovanadates RVO4 Bi3+ crystal structure microstructure photoluminescence Inorganic chemistry QD146-197
Zdroj:	Inorganics, Vol 6, Iss 3, p 94 (2018)
Druh dokumentu:	article
ISSN:	2304-6740
DOI:	10.3390/inorganics6030094
Popis:	The results are reported on a precise crystal structure and microstructure determination of new mixed YVO4-based orthovanadates of Y0.5R0.5VO4 (R = Sm, Tb, Dy, Ho, Tm, Yb, Lu) as well as some Bi3+-doped RVO4 (R = La, Gd, Y, Lu) nano- (submicro-) materials. The formation of continuous solid solutions in the YVO4–RVO4 pseudo-binary systems (R = Sm, Tb, Dy, Ho, Tm, Yb, Lu) has been proved. The lattice constants and unit cell volumes of the new mixed orthovanadates were analyzed as a function of R3+ cation radius. The impact of crystal structure parameters on the energy band gap of the materials was studied by means of photoluminescence studies of the Bi3+-doped compounds.
Databáze:	Directory of Open Access Journals
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