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

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

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

New Results on Electroluminescence from Porous Silicon

1992 ◽  
Vol 283 ◽  
Author(s):  
Peter Steiner ◽  
Frank Kozlowski ◽  
Hermann Sandmaier ◽  
Walter Lang
Keyword(s):  
Porous Silicon ◽  
Quantum Efficiency ◽  
Light Emitting Diodes ◽  
Uv Light ◽  
Green Light ◽  
Light Emitting ◽  
Porous Region ◽  
First Results

ABSTRACTFirst results on light emitting diodes in porous silicon were reported in 1991. They showed a quantum efficiency of 10-7 to 10-5 and an orange spectrum. Over the last year some progress was achieved:- By applying UV-light during the etching blue and green light emitting diodes in porous silicon are fabricated.- When a p/n junction is realized within the porous region, a quantum efficiency of 10-4 is obtained.

Robust 285 nm Deep UV Light Emitting Diodes over Metal Organic Hydride Vapor Phase Epitaxially Grown AlN/Sapphire Templates

2007 ◽  
Vol 46 (No. 23) ◽  
pp. L537-L539 ◽  
Author(s):  
Vinod Adivarahan ◽  
Qhalid Fareed ◽  
Surendra Srivastava ◽  
Thomas Katona ◽  
Mikhail Gaevski ◽  
...  
Keyword(s):  
Vapor Phase ◽  
Light Emitting Diodes ◽  
Uv Light ◽  
Light Emitting ◽  
Organic Hydride ◽  
Metal Organic ◽  
Deep Uv

Effect of deep-level states on current-voltage characteristics and electroluminescence of blue and UV light-emitting diodes

2010 ◽  
Vol 207 (6) ◽  
pp. 1489-1496 ◽  
Author(s):  
R. Nana ◽  
P. Gnanachchelvi ◽  
M. A. Awaah ◽  
M. H. Gowda ◽  
A. M. Kamto ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Deep Level ◽  
Uv Light ◽  
Light Emitting ◽  
Current Voltage ◽  
Current Voltage Characteristics

Growth and properties of near-UV light emitting diodes based on InN/GaN quantum wells

2008 ◽  
Vol 205 (5) ◽  
pp. 1070-1073 ◽  
Author(s):  
E. Dimakis ◽  
A. Yu. Nikiforov ◽  
C. Thomidis ◽  
L. Zhou ◽  
D. J. Smith ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Light Emitting Diodes ◽  
Uv Light ◽  
Light Emitting

Synthesis and photoluminescence properties of BaGeTeO6:Eu3+ red-emitting phosphor for n-UV Light Emitting Diodes

2019 ◽  
Vol 209 ◽  
pp. 52-56 ◽  
Author(s):  
Tingting Bai ◽  
Lei Zhao ◽  
Yanping Niu ◽  
Kang Luo ◽  
Wenbo Chen ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Uv Light ◽  
Photoluminescence Properties ◽  
Light Emitting ◽  
Red Emitting Phosphor
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