Advancing Reporting Guidelines for Optimal Characterization of Inorganic Phosphors

Simultaneous NIR photoluminescence and mechanoluminescence from Cr3+ activated MgGa2O4 phosphors with multifunctions for optical sensing

“…6 Near-infrared luminescent materials can be excited by a variety of excitation processes, such as photoluminescence (PL), mechanical luminescence (ML), electroluminescence (EL), and thermoluminescence (TL). 7–9 Additionally, there are also some novel stimulation sources, such as modifying and improving some advanced magnetite nanomaterials to respond to external magnetic fields and produce bright near-infrared emissions. 10,11 Furthermore, sonoluminescence, a fascinating phenomenon, involves tiny bubbles in liquid emitting light when exposed to strong sound waves.…”

A Strategy for the Synthesis of Oxonitridosilicate Phosphors from Anionic Condensation

“…In past years, phosphor-converted light-emitting diodes (pc-LEDs) have been the most cost-efficient and reliable solid-state lighting options. 1,2 As pc-LEDs are usually constructed using a blue or ultraviolet (UV) LED chip combined with phosphors, the phosphor plays a crucial role in determining light device performances, such as color rendering/temperature, luminous efficiency, and lifetime. 3,4 Consistent efforts are persistently put forth in the search for new phosphors with novel crystal structures or compositions.…”

“…9,10 The anionic substitution of the element of N to O leads not only to the expansion of element composition but also to the structure diversity. From a structural perspective, oxosilicates primarily consist of SiO 4 tetrahedra featuring either terminal O [1] or bridging O [2] atoms, but (oxo)nitridosilicates are predominantly composed of Si(O/N) 4 tetrahedra, with N [1] , N [2] , N [3] , and N [4] types of connections, 11 which allows for a wide range of additional structural possibilities. However, the number of (oxo)nitridosilicates is still relatively small compared to that of the oxosilicates.…”

“…29−32 All of these compounds have layer structures. With the increase of the x value, the number of tetrahedral connection types centered with N [3] increases, and the tetrahedral connection types centered with O [2] decrease, resulting in a highly condensed intralayer structure. The degree of condensation of the layer gradually increased from κ = 6:15 (0.4) to κ = 6:12 (0.5).…”

“…40) and lattice parameters a = 9.2986(1) Å, b = 23.4382(1) Å, c = 5.371(1) Å, V = 1170.55(1) Å 3 , and Z = 4. The condensation appears inside the layer, with dreier rings originating from neighboring tetrahedra connected by bridging nitride (N [2] ). This enriches the possibility of using the approach to design multiple layered or other featured oxonitridosilicates.…”