Luminescent properties of CaAl4O7 powders doped with Mn4+ ions
Source abstract
Abstract
Abstract In this work, the effects of firing conditions, the Mn concentration, and a flux on the structural and luminescent properties of Mn 4+ ion doped CaAl 4 O 7 (CA 2 ) powders were investigated. The photoluminescence excitation spectra of CA 2 :Mn 4+ powders exhibited a broad band, covering from around 320 to 400 nm. Four red emission bands were observed at around 644, 656, 666, and 671 nm, while the 656 nm emission was observed as the strongest one. CA 2 :Mn 4+ was believed to be a good candidate as a red phosphor for white light emitting diodes (LEDs) using near ultraviolet chips.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Luminescence Properties of Advanced Materials · Luminescence and Fluorescent Materials · Gas Sensing Nanomaterials and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (15)
Show source-provided references
1. Luminescent properties of Ce and Eu doped Sr4Al14O25 phosphors10.1016/j.optmat.2005.09.031 ↗
2. Eu2+ doped calcium aluminate coatings by sol–gel methods10.1016/j.optmat.2005.03.001 ↗
3. Blue emission properties of Eu-doped CaAl2O4 phosphors synthesized by a flux method10.1016/j.mseb.2007.07.048 ↗
4. Mechanisms of persistent luminescence in Eu2+, Re3+ doped alkaline earth aluminates10.1016/S0022-2313(01)00279-4 ↗
5. Fluorescence properties of Mn4+ in CaAl12O19 compounds as red-emitting phosphor for white LED10.1016/j.jlumin.2005.01.003 ↗
6. Spectroscopic and crystal field analysis of absorption and photo-luminescence properties of red phosphor CaAl12O19:Mn4+ modified by MgO10.1016/j.jallcom.2010.11.117 ↗
7. Sensitized luminescence in Mn-activated alkaline earth aluminate phosphors10.1143/JJAP.6.1315 ↗
8. Manganese-activated luminescence in SrAll2O19 and CaAl12O1910.1149/1.2408274 ↗
9. Luminescence properties of MAl12O19:Mn4+(M=Ca, Sr, Ba) for UV LEDs10.2109/jcersj2.117.647 ↗
10. The optical properties and structures of CaO–2Al2O3 and SrO–2Al2O310.1107/S0365110X58001183 ↗
11. The crystal structure of CaO–2Al2O310.1107/S056774087000393X ↗
12. Luminescence and energy transfer in CaAl4O7:Tb3+, Ce310.1016/S0022-2313(01)00182-X ↗
13. Structure and luminescence properties of pure CaAl4O7:Eu3+ by self-propagating combustion synthesis
14. A thermodynamic model for multicomponent melts, with application to the system CaO–Al2O3–SiO210.1016/0016-7037(84)90094-2 ↗
15. Electronic states of Mn2+-activated phosphors10.1149/1.2408272 ↗