Luminescent properties of MAl(SO 4 ) 2 Br:Eu 3+ (M = Sr or Mg) red phosphors for near‐UV light‐emitting diodes

Luminescence ◽  
2014 ◽  
Vol 30 (1) ◽  
pp. 118-121 ◽  
Author(s):  
Priti B. Deshmukh ◽  
S. P. Puppalwar ◽  
N. S. Dhoble ◽  
S. J. Dhoble
Keyword(s):  
Light Emitting Diodes ◽  
Uv Light ◽  
Luminescent Properties ◽  
Light Emitting ◽  
Red Phosphors

Yellow White to Blue White Tunable Luminescent Properties of Dy3+, Tm3+ Doped Sr2LiSiO4F Phosphors for Near-UV Light-Emitting Diodes

2017 ◽  
Vol 9 (3) ◽  
pp. 475-479 ◽  
Author(s):  
Mubiao Xie ◽  
Dongyu Li ◽  
Guoxian Zhu ◽  
Lihua Zeng ◽  
LiQin Qin ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Uv Light ◽  
Luminescent Properties ◽  
Light Emitting

Preparation and Luminescent Properties of Na5Eu(MoO4)4-x(PO4)x Red Phosphors for White Light-Emitting Diodes Application

2010 ◽  
Vol 654-656 ◽  
pp. 2025-2028 ◽  
Author(s):  
Cui Sheng Xi ◽  
Shi Kao Shi ◽  
Hui Li Gong ◽  
Ji Zhou
Keyword(s):  
White Light ◽  
Light Emitting Diodes ◽  
Luminescent Properties ◽  
Solid State Reaction Method ◽  
Conventional Solid State Reaction ◽  
Red Phosphor ◽  
Light Emitting ◽  
Red Phosphors ◽  
Relative Emission Intensity ◽  
White Light Emitting Diodes

(PO4)3- -doped red phosphors, Na5Eu(MoO4)4-x(PO4)x (x ≤ 0.10), were prepared by the conventional solid-state reaction method, and their luminescent properties were studied. Under the excitation of near-UV 395 nm, the phosphors show intense red emission. In particular, the relative emission intensity of Na5Eu(MoO4)3.96(PO4)0.04 sample reaches about 5.0 times in comparison with that of the commercial red phosphor Y2O2S:Eu3+. The phosphor could be suitable for the application of white light-emitting diodes.

Novel red phosphors LaBSiO5 co-doped with Eu3+, Al3+ for near-UV light-emitting diodes

2014 ◽  
Vol 37 ◽  
pp. 277-280 ◽  
Author(s):  
Zhengliang Wang ◽  
Ping Cheng ◽  
Yong Liu ◽  
Yayun Zhou ◽  
Qiang Zhou ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Uv Light ◽  
Light Emitting ◽  
Red Phosphors ◽  
Co Doped

Luminescent Properties of Ca2-XBO3Cl:xDy3+ Phosphors for White Light-Emitting Diodes

2010 ◽  
Vol 663-665 ◽  
pp. 434-436
Author(s):  
Qing Xuan Yang ◽  
Xiao Guang Fu ◽  
Xiao Jun Wang
Keyword(s):  
White Light ◽  
Light Emitting Diodes ◽  
Uv Light ◽  
Resonance Energy Transfer ◽  
Resonance Energy ◽  
Luminescent Properties ◽  
Light Emitting ◽  
Near Ultraviolet ◽  
Optimal Doping Concentration ◽  
White Light Emitting Diodes

Novel single-phase Ca2-xBO3Cl:xDy3+ phosphors were synthesized at 900 oC in an activated carbon reducing atmosphere, and their luminescent properties were investigated by photoluminescence (PL) and photoluminescence excitation (PLE) spectra. The optimal doping concentration of Dy3+ ions is found to be x=0.03 mol, and the nature of resonance energy transfer for Dy3+ ions is also discussed. Generation of white-light excited by 390 near-ultraviolet (n-UV) light shows that all the investigated phosphors lie within white region and the colour coordinate of Ca1.95BO3Cl:0.05Dy3+ (0.272, 0.326) is closer to the equal-energy white light point, which is potentially a good candidate as an n-UV-converted phosphor for white light-emitting diodes (LEDs).

Performance of vertical type deep UV light-emitting diodes depending on the Ga-face n-contact hole density

2021 ◽  
Vol 118 (23) ◽  
pp. 231102
Author(s):  
Youn Joon Sung ◽  
Dong-Woo Kim ◽  
Geun Young Yeom ◽  
Kyu Sang Kim
Keyword(s):  
Light Emitting Diodes ◽  
Uv Light ◽  
Hole Density ◽  
Light Emitting ◽  
Deep Uv
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