Enhancement of red emission intensity of Ca9Y(VO4)7:Eu3+ phosphor via Bi co-doping for the application to white LEDs

2013 ◽  
Vol 139 (1) ◽  
pp. 87-91 ◽  
Author(s):  
Lili Han ◽  
Yuhua Wang ◽  
Jia Zhang ◽  
Yanzhao Wang
Keyword(s):  
Emission Intensity ◽  
Red Emission ◽  
White Leds ◽  
Co Doping

Enhanced red emission of NaSrVO4:Eu3+ phosphor via Bi3+co-doping for the application to white LEDs

2017 ◽  
Vol 43 (1) ◽  
pp. 830-834 ◽  
Author(s):  
Yu Zeng ◽  
Kehui Qiu ◽  
Ziqi Yang ◽  
Yunlei Bu ◽  
Wentao Zhang ◽  
...  
Keyword(s):  
Red Emission ◽  
White Leds ◽  
Co Doping

Enhancement emission intensity of CaMoO4 : Eu3+, Na+phosphor via Bi co-doping and Si substitution for application to white LEDs

2009 ◽  
Vol 42 (10) ◽  
pp. 105107 ◽  
Author(s):  
An Xie ◽  
Ximing Yuan ◽  
Shujie Hai ◽  
Juanjuan Wang ◽  
Fengxiang Wang ◽  
...  
Keyword(s):  
Emission Intensity ◽  
White Leds ◽  
Co Doping

Enhancement of red spectral emission intensity of Y3Al5O12:Ce3+ phosphor via Pr co-doping and Tb substitution for the application to white LEDs

2007 ◽  
Vol 126 (2) ◽  
pp. 371-377 ◽  
Author(s):  
Ho Seong Jang ◽  
Won Bin Im ◽  
Dong Chin Lee ◽  
Duk Young Jeon ◽  
Shi Surk Kim
Keyword(s):  
Emission Intensity ◽  
Spectral Emission ◽  
White Leds ◽  
Co Doping

scholarly journals Ca3Lu(AlO)3(BO3)4 : Sm3+: a novel red-emitting phosphor with high colour purity for NUV-based warm white LEDs

RSC Advances ◽  
2018 ◽  
Vol 8 (71) ◽  
pp. 40693-40700 ◽  
Author(s):  
Wasim ullah Khan ◽  
Sunilkumar Baburao Mane ◽  
Salim ullah Khan ◽  
Dongdong Zhou ◽  
Dilfaraz Khan ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Emission Intensity ◽  
Excellent Thermal Stability ◽  
Red Emission ◽  
White Leds ◽  
Red Emitting Phosphor

Ca3Lu(AlO)3(BO3)4 : Sm3+: a novel red-emitting phosphor with high colour purity up to 98.53% and excellent thermal stability (the red emission intensity of CLAB : 0.05Sm3+ at 425 K is 86.6% of that at 300 K) for NUV-based warm white LEDs.

High red emission intensity of Eu:Y2O3 films grown on Si(1 0 0)/Si(1 1 1) by electron beam evaporation

2014 ◽  
Vol 148 ◽  
pp. 186-191 ◽  
Author(s):  
V.A.G. Rivera ◽  
F.A. Ferri ◽  
J.L. Clabel H. ◽  
M.A. Pereira-da-Silva ◽  
L.A.O. Nunes ◽  
...  
Keyword(s):  
Electron Beam ◽  
Emission Intensity ◽  
Electron Beam Evaporation ◽  
Red Emission

Luminescence properties of Mn4+ with high 2Eg level energy in the polyfluoride Na3Li3Sc2F12

2020 ◽  
Vol 49 (33) ◽  
pp. 11613-11617
Author(s):  
Hong Li ◽  
Yan Liu ◽  
Shu Tang ◽  
Lijun Luo ◽  
Qiang Zhou ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Thermal Quenching ◽  
Luminescence Properties ◽  
Level Energy ◽  
Red Emission ◽  
White Leds ◽  
Red Emitting Phosphor

Red-emitting phosphor Na3Li3Sc2F12:Mn4+ with the high 2Eg level energy shows intensive red emission accompanied with the high external quantum efficiency and thermal-quenching resistance for warm white LEDs.

Synthesis and characterization of YAG:Ce phosphors for white LEDs

2015 ◽  
Vol 23 (4) ◽  
Author(s):  
V. Tucureanu ◽  
A. Matei ◽  
A.M. Avram
Keyword(s):  
Sol Gel ◽  
Luminescent Properties ◽  
Blue Shift ◽  
Temperature Treatment ◽  
Yttrium Aluminium Garnet ◽  
White Leds ◽  
Light Emitting Devices ◽  
Co Doping ◽  
Co Precipitation ◽  
Average Size

AbstractWorldwide commercial interest in the production of cerium doped yttrium aluminium garnet (YAG:Ce) phosphors is reflected in the widespread use of white light emitting devices. Despite of the fact that YAG:Ce is considered a “cool phosphor” it is the most important in white LED technology. This article reviews the developed techniques for producing phosphors with superior photoluminescence efficiency, including solid-state reaction, sol-gel and (co)precipitation methods. Also, by co-doping with rare earth elements, a red/blue shift is reached in the spectrum. The characteristics of YAG:Ce phosphors are investigated because the properties of the phosphors are strongly influenced by the synthesis routes and the sintering temperature treatment. After the phase analysis, morphology and emission studies of the phosphors there may be seen the conditions when the transition from the amorphous phase to the crystalline phase appears, when luminescent properties are influenced by the crystalline form, purity, average size of the particles, co-doping and so on.

Upconversion luminescence of cerium-stabilized high temperature phase zirconia phosphors with a high Er3+ doping concentration

RSC Advances ◽  
2015 ◽  
Vol 5 (130) ◽  
pp. 107857-107863 ◽  
Author(s):  
Lili Cao ◽  
Yongqiang Zhou ◽  
Weidong Xiang ◽  
Dewu Yin ◽  
Xiaojuan Liang ◽  
...  
Keyword(s):  
High Temperature ◽  
Emission Intensity ◽  
Doping Concentration ◽  
Upconversion Luminescence ◽  
High Temperature Phase ◽  
Temperature Phase ◽  
Red Emission

As the Er3+ concentration increases, the luminescence can be tuned from green to red and the red emission intensity reaches its maximum with an Er3+ concentration as high as 10 mol%.

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