A highly efficient and thermally stable green phosphor (Lu2SrAl4SiO12:Ce3+) for full-spectrum white LEDs

2018 ◽  
Vol 6 (45) ◽  
pp. 12159-12163 ◽  
Author(s):  
Yu Xiao ◽  
Wenge Xiao ◽  
Liangliang Zhang ◽  
Zhendong Hao ◽  
Guo-Hui Pan ◽  
...  
Keyword(s):  
Emission Spectra ◽  
Thermally Stable ◽  
Full Spectrum ◽  
Green Phosphor ◽  
White Leds ◽  
Highly Efficient

Traditional phosphor-converted white LEDs suffer from the so-called blue-green cavity in their emission spectra.

Europium(ii)-activated oxonitridosilicate yellow phosphor with excellent quantum efficiency and thermal stability – a robust spectral conversion material for highly efficient and reliable white LEDs

2015 ◽  
Vol 17 (24) ◽  
pp. 15797-15804 ◽  
Author(s):  
Le Wang ◽  
Hong Zhang ◽  
Xiao-Jun Wang ◽  
Benjamin Dierre ◽  
Takayuki Suehiro ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Quantum Efficiency ◽  
Thermally Stable ◽  
Yellow Phosphor ◽  
White Leds ◽  
Highly Efficient ◽  
Spectral Conversion

A highly efficient and thermally stable yellow phosphor was developed to fabricate highly efficient and reliable cool white LEDs.

scholarly journals Highly-efficient, tunable green, phosphor-converted LEDs using a long-pass dichroic filter and a series of orthosilicate phosphors for tri-color white LEDs

2011 ◽  
Vol 20 (S1) ◽  
pp. A1 ◽  
Author(s):  
Ji Hye Oh ◽  
Jeong Rok Oh ◽  
Hoo Keun Park ◽  
Yeon-Goog Sung ◽  
Young Rag Do
Keyword(s):  
Green Phosphor ◽  
White Leds ◽  
Highly Efficient ◽  
Dichroic Filter

A design methodology for phosphor mixtures for tunable spectrum LEDs

MRS Advances ◽  
2016 ◽  
Vol 1 (50) ◽  
pp. 3435-3440 ◽  
Author(s):  
Partha S. Dutta ◽  
Kathryn M. Liotta
Keyword(s):  
Design Methodology ◽  
Emission Spectra ◽  
Full Spectrum ◽  
Light Emitting ◽  
White Leds ◽  
Fixed Weight ◽  
Wide Range ◽  
Color Rendering Index ◽  
White Light Emitting Diodes ◽  
Color Rendering

ABSTRACT Spectrum tuning in phosphor converted white light emitting diodes (pc-WLED) is done by mixing powders of phosphor compounds (with different emission wavelengths) in different weight ratios. In this paper, a new methodology for designing unique full spectrum phosphor mixtures (with fixed weight ratios of different emission phosphor) has been presented that could provide a wide range of pc-WLED spectrum. This is done by optimizing the excitation and emission spectra of the phosphor compounds used in the mixture. A unique phosphor mixture comprising of Eu2+ and Ce3+-Na1+ activated compounds of SrGa2S4, CaGa2S4, SrS, CaS and CaF2 was used to produce full spectrum warm, neutral and cool white LEDs with color temperatures between 2500 K and 7500 K and with color rendering index exceeding 95.

Highly Efficient and Thermally Stable Far-Red-Emitting Phosphors for Plant-Growth Lighting

2021 ◽  
Author(s):  
Dan Wu ◽  
Hao Wu ◽  
Yu Xiao ◽  
Xiaoling Dong ◽  
Yue Wang ◽  
...  
Keyword(s):  
Plant Growth ◽  
Thermally Stable ◽  
Highly Efficient

Rational Design of Chelated Aluminum Complexes toward Highly Efficient and Thermally Stable Electron-Transporting Materials

2014 ◽  
Vol 26 (12) ◽  
pp. 3693-3700 ◽  
Author(s):  
Na Lin ◽  
Juan Qiao ◽  
Lian Duan ◽  
Jie Xue ◽  
Liduo Wang
Keyword(s):  
Rational Design ◽  
Thermally Stable ◽  
Highly Efficient ◽  
Aluminum Complexes

Highly efficient Ce3+ → Tb3+ energy transfer induced bright narrowband green emissions from garnet-type Ca2YZr2(AlO4)3:Ce3+,Tb3+ phosphors for white LEDs with high color rendering index

2019 ◽  
Vol 7 (34) ◽  
pp. 10471-10480 ◽  
Author(s):  
Liangling Sun ◽  
Balaji Devakumar ◽  
Jia Liang ◽  
Shaoying Wang ◽  
Qi Sun ◽  
...  
Keyword(s):  
Energy Transfer ◽  
White Leds ◽  
Highly Efficient ◽  
Color Rendering Index ◽  
Color Rendering

Highly efficient Ce3+ → Tb3+ energy transfer induced bright narrowband green emissions from Ca2YZr2(AlO4)3:Ce3+,Tb3+ garnet phosphors, which showed great potential for application in warm-white LEDs with high color rendering index.

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