Fabrication of REVO₄ films via sacrificial conversion from layered rare-earth hydroxide (LRH) films: the investigation of the transition mechanism and their photoluminescence

Abstract

The rare-earth orthovanadate REVO4 (RE = La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, and Y) films were directly synthesized within 2 hours by sacrificial conversion from the electrodeposited...

Fluorination of Eu-doped layered yttrium hydroxides: the role of anionic composition

“…The high mobility of anions in the layers allows for anion exchange at room temperature. The anion exchange ability of LRHs is used to synthesize a variety of other rare-earth compounds: vanadates [10], tungstates [11], phosphates [12,13], and fluorides [14]. The mechanism of such reactions is considered as dissolutionreprecipitation [11] and topotactic [15][16][17].…”

A bacterial cellulose-based LiSrVO4:Eu3+ nanosensor platform for smartphone sensing of levodopa and dopamine: point-of-care diagnosis of Parkinson's disease

“…Owing to their high luminescence efficiency and chemical permanence, vanadate-based compounds have attracted attention for use in conventional luminescent host lattices. 23,24 There is a correlation between the colors given off by luminescent compounds and their structural properties, as longer V-O distances in the (VO 4 ) 3− tetrahedra in the crystal structures are associated with longer photoluminescence wavelengths. 25 Furthermore, an ionic complex group (VO 4 ) 3− , consisting of a vanadium ion coordinated to four O 2− ions in a tetrahedral symmetry, was found to be an effective luminescent center.…”