Optimizing and adjusting the photoluminescence of Mn4+-doped fluoride phosphors via forming composite particles

2019 ◽  
Vol 48 (2) ◽  
pp. 711-717 ◽  
Author(s):  
Yiwen Zhu ◽  
Shuo Yuan ◽  
Lin Huang ◽  
Yong Liu ◽  
Xinyue Li ◽  
...  
Keyword(s):  
Color Temperature ◽  
Composite Particles ◽  
White Leds ◽  
Red Phosphors ◽  
Color Rendering Index ◽  
Color Rendering

Nowadays, Mn4+-doped red phosphors are widely used in white LEDs to improve the color rendering index and decrease the correlated color temperature.

A red phosphor BaTiF6:Mn4+: reaction mechanism, microstructures, optical properties, and applications for white LEDs

2014 ◽  
Vol 43 (25) ◽  
pp. 9414-9418 ◽  
Author(s):  
Xianyu Jiang ◽  
Zhen Chen ◽  
Shaoming Huang ◽  
Jiaguo Wang ◽  
Yuexiao Pan
Keyword(s):  
Optical Properties ◽  
Reaction Mechanism ◽  
White Light ◽  
Red Phosphor ◽  
White Leds ◽  
Red Phosphors ◽  
Warm White Light ◽  
Color Rendering Index ◽  
Color Rendering

Red phosphors BaTiF6:Mn4+ were obtained by etching Ti(OC4H9)4 and TiO2 with BaF2 in HF and a KMnO4 solution. The WLED fabricated with BaTiF6:Mn4+ exhibits a “warm” white light with a color rendering index of 93.13.

Mn2+and Mn4+red phosphors: synthesis, luminescence and applications in WLEDs. A review

2018 ◽  
Vol 6 (11) ◽  
pp. 2652-2671 ◽  
Author(s):  
Qiang Zhou ◽  
Leonid Dolgov ◽  
Alok M. Srivastava ◽  
Lei Zhou ◽  
Zhengliang Wang ◽  
...  
Keyword(s):  
Transition Metal ◽  
White Light ◽  
Light Emitting Diodes ◽  
Color Temperature ◽  
Luminescent Materials ◽  
Light Emitting ◽  
Red Phosphors ◽  
Important Family ◽  
Color Rendering Index ◽  
Color Rendering

Transition-metal activated phosphors are an important family of luminescent materials that can produce white light with an outstanding color rendering index and correlated color temperature for use in light-emitting diodes.

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