Temperature dependence of persistent phosphorescence in Eu2+-doped Ba3SiO5

Antiperovskites with Exceptional Functionalities

“…[145][146][147][148] Moreover, the persistent luminescence of Eu 2+ -activated AE 3 SiO 5 (AE = Sr, Ba) phosphors has also been frequently investigated. [149][150][151][152][153] Ce-doped (Sr,Ba) 3 AlO 4 F (SBAF:Ce 3+ ) has been developed as a highly efficient green oxyfluoride phosphor family for solidstate white light-emitting diodes. [154] In the antiperovskite structure of (Sr,Ba) 3 AlO 4 F, Sr and Ba occupy the 8h and 4a sites, respectively, and the 4b site is fully occupied by Al.…”

“…Many other examples of antiperovskite or antiperovskite‐derived structures with or without elemental substitution as advanced host lattices for luminescent materials can also be found, such as Sr 3 MO 4 F (M = Al, Ga, In) and AE 3− x A x SiO 4 F (AE = Ca, Sr; A = Li, Na) . Moreover, the persistent luminescence of Eu 2+ ‐activated AE 3 SiO 5 (AE = Sr, Ba) phosphors has also been frequently investigated …”

Insights into the discrepant luminescence for BaSiO3:Eu2+ phosphors prepared by solid‐state reaction and precipitation reaction methods

“…This novel yellow persistent phosphor has shown great potential for use in energy‐saving material applications, like other silicate‐based persistent phosphors . Alternatively, from this BaSiO 3 :Eu 2+ yellow persistent phosphor, both greenish‐blue persistent emission and orange persistent emission were reported for Ba 4 (Si 3 O 8 ) 2 :Eu 2+ and the Ba 3 SiO 5 :Eu 2+ persistent phosphor, respectively. However, except for the above‐mentioned observations of yellow emission, some inconsistent results for the BaSiO 3 :Eu 2+ phosphors could be traced in the literature.…”

“…As a member of the silicate phosphors, the BaO‐SiO 2 :Eu 2+ phosphor system with different Ba/Si mole ratios (e.g. BaSiO 3 :Eu 2+ , Ba 2 SiO 4 :Eu 2+ , Ba 3 SiO 5 :Eu 2+ , BaSi 2 O 5 :Eu 2+ , Ba 4 Si 6 O 16 :Eu 2+ ) has been reported for application in WLEDs . For the orthorhombic BaSiO 3 :Eu 2+ phosphor, a broad yellow luminescence band with a maximum at 550 nm at 4.2 K was first reported by Blasse in 1996 .…”

Insights into Ba4Si6O16 structure and photoluminescence tuning of Ba4Si6O16:Ce3+,Eu2+ phosphors

“…6 As is well known, many barium silicate compounds which exist in the above-mentioned BaO-SiO 2 binary phase diagram have been reported as phosphor hosts. Based on a careful paper review, the emission of the reported Eu 2+ single-doped barium silicate phosphors can be tuned from blue to green to yellow light depending on the chemical composition and crystal structure, such as Ba 5 Si 8 O 21 :Eu 2+ (l em = B480 nm), 6,7 Ba 2 Si 3 O 8 (Ba 4 Si 6 O 16 ):Eu 2+ (l em = B485 nm), 8,9 Ba 2 SiO 4 :Eu 2+ (l em = 504-510 nm), 10,11 BaSi 2 O 5 :Eu 2+ (l em = B520 nm), 6,12 Ba 3 SiO 5 :Eu 2+ (l em = 504-566 nm or 560-590 nm), 13,14 BaSiO 3 :Eu 2+ (l em = B550 nm) 15,16 and so on. Among them, Ba 2 SiO 4 :Eu 2+ is a well-known green phosphor for wLEDs, but serious luminescent quenching at elevated temperatures restricts its application.…”