White-light-emitting phosphor: CaMgSi2O6:Eu2+, Mn2+ and its related properties with blending
- 27 November 2006
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 89 (22)
- https://doi.org/10.1063/1.2399338
Abstract
The CaMgSi2O6:Eu2+, Mn2+ phosphors show three emission bands peaking at around 450nm (blue), 580nm (yellow), and 680nm (red). The blue band originates from the allowed f-d transition of Eu2+ ions on Ca sites. The yellow and red bands originate from the forbidden T14-A16 transition of Mn2+ ions on Mg2+ and Ca2+ sites, respectively. Electron paramagnetic resonance measurement demonstrates that Mn2+ ions occupy two different Ca2+ and Mg2+ sites. The mixtures of the green-poor CaMgSi2O6:Eu2+, Mn2+ and the green-to-yellow emissive (Ba,Sr)2SiO4:Eu2+, excited by the near ultraviolet of 365nm, show the various chromaticity of white light depending on the mixture ratio; the correlated color temperatures from 4845to9180K, and the color rendering indices from 71% to 88%.Keywords
This publication has 13 references indexed in Scilit:
- Solid-State Lighting: Toward Superior IlluminationProceedings of the IEEE, 2005
- Highly efficient all‐nitride phosphor‐converted white light emitting diodePhysica Status Solidi (a), 2005
- Origin of PL intensity increase of CaMgSi2O6:Eu2+ phosphor after baking process for PDPs applicationSolid State Communications, 2005
- Development of a new blue CaMgSi[sub 2]O[sub 6]:Eu[sup 2+] phosphor for PDPsJournal of the Society for Information Display, 2005
- Color Tunability and Stability of Silicate Phosphor for UV-Pumped White LEDsJournal of the Electrochemical Society, 2005
- Emission color variation of M2SiO4:Eu2+ (M=Ba, Sr, Ca) phosphors for light-emitting diodeSolid State Communications, 2004
- Warm-white-light emitting diode utilizing a single-phase full-color Ba3MgSi2O8:Eu2+, Mn2+ phosphorApplied Physics Letters, 2004
- Development of Phosphors for LEDSThe Electrochemical Society Interface, 2003
- Present performance of InGaN-based blue/green/yellow LEDsPublished by SPIE-Intl Soc Optical Eng ,1997
- Full-Color Fluorescent Display Devices Using a Near-UV Light-Emitting DiodeJapanese Journal of Applied Physics, 1996