Revised Structure of the Orthoborate YBO3

Self‐Assembled 3D Architectures of LuBO3:Eu3+: Phase‐Selective Synthesis, Growth Mechanism, and Tunable Luminescent Properties

“…Two types of environment for the rare earth cation are reported with lower symmetry than S 6 because of the delocalization of oxygen atoms leading to a deviation from the ideal S 6 local symmetry. [12] The crystal structures of these two different phases are shown in Figure 2.…”

“…[8a] Lutetium orthoborates (LuBO 3 ), owing to their high density and high damage thresholds, have been considered as promising host matrices for substitution of lanthanide ions to produce phosphors, lasers, or scintillators. [11] They crystallize in two polymorphs, that is, a rhombohedral-calcite phase and a hexagonal-vaterite phase with different crystal field symmetry, [12] which can result in different luminescent properties of the doped Eu 3 + ions. As a result, the selective synthesis of calcite and vaterite types of LuBO 3 not only has great theoretical significance in the study of the polymorph conversion/phase transition processes and the phase-dependent properties, but is also very important for their potential applications.…”

Photoluminescent properties of Sb3+-doped and (Sb3+, Eu3+) co-doped YBO3 phosphors prepared via hydrothermal method and solid-state process

“…Much attention has been focused on the research of LnBO 3 (Ln = rare earth and yttrium) due to their excellent luminescent properties of high vacuum ultraviolet (VUV) transparency, exceptional optical damage thresholds, and chemical and environmental stability [1][2][3][4][5]. Eu 3+ -doped LnBO 3 has been widely used as a red color material for plasma display panels (PDP) because of its high quantum efficiency and good color coordinates under 147 nm VUV irradiation [4][5][6].…”

“…Eu 3+ -doped LnBO 3 has been widely used as a red color material for plasma display panels (PDP) because of its high quantum efficiency and good color coordinates under 147 nm VUV irradiation [4][5][6]. Tb 3+ -activated YBO 3 and (Y, Gd)BO 3 PDP materials with green emission have also been reported by Rao [7], Sohn et al [8] and Jung et al [9]. Various methods have been used to prepare LnBO 3 phosphor materials, for example, conventional solid-state reaction [1,6,10], co-precipitation [11,12], microwave heating [13], spray pyrolysis [14], sol-gel [11], combustion [15], and hydrothermal method [16][17][18].…”

“…Various methods have been used to prepare LnBO 3 phosphor materials, for example, conventional solid-state reaction [1,6,10], co-precipitation [11,12], microwave heating [13], spray pyrolysis [14], sol-gel [11], combustion [15], and hydrothermal method [16][17][18]. The phosphor of YBO 3 : Eu 3+ has been produced through a high temperature solidstate method in industry for many years. Although this method was proved to be an effective technique in largescale production in industry, there are some shortcomings in the high temperature solid-state reactions.…”