Optical and surface analysis of lithium incorporated GdVO4:Eu3+ phosphor powders

Hydrothermal synthesis and luminescence properties of GdVO4:Ln3+ (Ln=Eu, Sm, Dy) phosphors

“…Up to now, several synthetic routes have been developed to prepare rare-earth ions doped GdVO 4 . For instance, solid-state reaction [14], hydro/solvothermal method [2,18,19], in situ co-precipitation reaction [25,26], sol-gel process [27] and electrospinning technology [5]. Among the above synthesis techniques, hydrothermal method is one of the most promising solution chemical methods due to its advantages, such as the powders prepared through hydrothermal route have high purity, narrow particle size distribution and precise composition.…”

“…Among these phosphors, YVO 4 :Eu 3+ and GdVO 4 :Eu 3+ as red phosphors have attracted a considerable attention because of their integration of good thermal properties, chemical stability and high photoluminescence quantum yield, which makes them had a promising application in color television, field emission displays (FEDs) [9,10], cathode ray tubes (CRTs) [11], light emitting diodes (LED) [12] and plasma display panels (PDPs) [13,14]. Compared to YVO 4 :Eu 3+ , GdVO 4 :Eu 3+ has better temperature properties and the intensity of the luminescence increases rapidly with the temperature rises, which makes it can be applied in high temperature environments [15].…”

Enhanced photoluminescence of Gd0.94(P1−xVx)O4:Eu0.06 red-emitting (0 ≤ x ≤ 1.0) phosphors

“…The crystal structures of the GdPO 4 heated at 180 C and !500 C are the hexagonal structure and the monazite monoclinic structure, respectively [5,10]. Eu 3þ ions in the GdPO 4 :Eu 3þ phosphors with the monazite monoclinic and hexagonal structures are surrounded by nine and eight O 2À , respectively [13]. In the hexagonal structure, a three-dimensional covalent network consists of (PO 4 ) groups and (GdO 8 ) polyhedra sharing edges or corners [14].…”

“…In addition, lanthanide vanadate-based phosphors have been intensively studied for application to color televisions, cathode ray tubes, high-pressure mercury lamps, displays, and X-ray detectors [13,15,16]. In particular, GdVO 4 :Eu 3þ is a strongly attractive material as a red phosphor in PDPs [17,18], which is caused by the noncentrosymmetric site of Eu 3þ ions [19].…”

VUV photoluminescence of (Y0.5Gd0.5)0.94VO4:Eu3+ red-emitting phosphors prepared by the solution combustion method

“…In particular, GdVO 4 :Eu 3+ has received considerable attention as a potential phosphor due to its strong absorption of UV light, effective energy transfer from VO 4 3À and has D 2d symmetry, which results in energy-level splitting of the Eu 3+ [6]. Shim et al [4] reported that the photoluminescence (PL) properties of the multicomponent (Y,Gd)VO 4 :Eu 3+ were much better than those of the single component YVO 4 :Eu 3+ and GdVO 4 :Eu 3+ .…”