Journal ArticleDOI
Influence of Covalency on the Mn4+ 2Eg→4A2g Emission Energy in Crystals
TLDR
In this article, a linear relationship between β1 and the energy of the 2Eg level was established, which made it possible to understand the large variation in the 2 Eg → 4 A2g emission transition that is frequently encountered in the spectroscopy of the Mn 4+ ions in solids.Abstract:
+ ( C C0 ) 2 (where (B, C (B0, C0) are the Racah parameters of the Mn 4+ ions in a crystal (free state), respectively) was recently introduced that allows for establishing a linear relationship between β1 and the energy of the 2Eg level. This makes it possible to understand the large variation in the energy of the 2 Eg → 4 A2g emission transition that is frequently encountered in the spectroscopy of the Mn 4+ ions in solids.read more
Citations
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Journal ArticleDOI
Mn2+ and Mn4+ red phosphors: synthesis, luminescence and applications in WLEDs. A review
Qiang Zhou,Leonid Dolgov,Alok Mani Srivastava,Lei Zhou,Zhengliang Wang,Jianxin Shi,Miroslav D. Dramićanin,Mikhail G. Brik,Mikhail G. Brik,Mikhail G. Brik,Mingmei Wu,Mingmei Wu +11 more
TL;DR: An overview of recent studies on transition metal activated phosphors can be found in this article, including detailed synthesis routes (solid-state reaction and wet-chemical synthesis) and description of luminescence mechanisms and phosphors' behaviors; discuss their promising applications in white light-emitting diodes.
Journal ArticleDOI
A review on the advancements in phosphor-converted light emitting diodes (pc-LEDs): Phosphor synthesis, device fabrication and characterization
TL;DR: The role of phosphors in the advancement of light-emitting diodes (LEDs) has been discussed in this paper, where a thorough discussion about the various methods employed for the synthesis of the phosphors and the materials involved in the fabrication of PC-LEDs are discussed.
Journal ArticleDOI
Non-Rare-Earth BaMgAl10–2xO17:xMn4+,xMg2+: A Narrow-Band Red Phosphor for Use as a High-Power Warm w-LED
TL;DR: In this paper, a red-emitting phosphor BaMgAl10−2xO17:xMn4+,xMg2+ is successfully synthesized, which exhibits bright and narrow-band luminescence peaking at 660 nm with a full width at half-maximum of merely ∼30 nm upon blue light excitation.
Journal ArticleDOI
Ab Initio Site Occupancy and Far-Red Emission of Mn4+ in Cubic-Phase La(MgTi)1/2O3 for Plant Cultivation
Ziwei Zhou,Jiming Zheng,Rui Shi,Niumiao Zhang,Jiayu Chen,Ruoyu Zhang,Hao Suo,Ewa M. Goldys,Chongfeng Guo,Chongfeng Guo +9 more
TL;DR: The emission band is well-matched with the absorption band of phytochrome PFR under the excitation of light in near-ultraviolet to blue, which suggests that the LMT: Mn4+ phosphor has great potential applications in light-emitting diodes (LEDs) for modulating plant growth.
Journal ArticleDOI
A deep red phosphor Li2MgTiO4:Mn4+ exhibiting abnormal emission: Potential application as color converter for warm w-LEDs
TL;DR: Li2MgTiO4:Mn and YAG:Ce are applied to the package of a blue LED chip to fabricate a warm w-LED.
References
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VESTA 3 for three-dimensional visualization of crystal, volumetric and morphology data
Koichi Momma,Fujio Izumi +1 more
TL;DR: VESTA has been upgraded to the latest version, VESTA 3, implementing new features including drawing the external morphology of crystals, and an extended bond-search algorithm to enable more sophisticated searches in complex molecules and cage-like structures.
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TL;DR: In this article, the effect of Ligand Fields on the energy levels of transition metal Ions was investigated and the influence of the d Configuration on the Geometry and Stability of Complexes was discussed.
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TL;DR: In this paper, the authors present a solid-state laser operation and design parameters, including material requirements for Laser Hosts and Active Ions, and material preparation and optical quality.
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Laser-related spectroscopy of ion-doped crystals for tunable solid-state lasers
TL;DR: In this article, an overview of transition metal ion- and rare earth ion-doped crystals for application as tunable solid-state lasers is given, including recent research and advances in this field.