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.

Highly efficient and thermally stable luminescence of Ca3Gd2Si6O18:Ce3+,Tb3+ phosphors based on efficient energy transfer

2020 ◽  
Vol 8 (48) ◽  
pp. 17176-17184
Author(s):  
Dan Wu ◽  
Yu Xiao ◽  
Liangliang Zhang ◽  
Xiaoling Dong ◽  
Shifeng Zhao ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Energy Transfer ◽  
Quantum Efficiency ◽  
Thermally Stable ◽  
Efficient Energy Transfer ◽  
High Quantum Efficiency ◽  
Efficient Energy ◽  
High Quantum ◽  
Highly Efficient

A high quantum efficiency and improved thermal stability can be achieved with the introduction of Tb3+ into Ca3Gd2Si6O18:Ce3+.

scholarly journals Thermally stable La2LiSbO6:Mn4+,Mg2+far-red emitting phosphors with over 90% internal quantum efficiency for plant growth LEDs

RSC Advances ◽  
2018 ◽  
Vol 8 (56) ◽  
pp. 31835-31842 ◽  
Author(s):  
Liangling Sun ◽  
Balaji Devakumar ◽  
Jia Liang ◽  
Bin Li ◽  
Shaoying Wang ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Plant Growth ◽  
Quantum Efficiency ◽  
Internal Quantum Efficiency ◽  
Double Perovskite ◽  
Thermally Stable ◽  
Good Thermal Stability

Double perovskite La2LiSbO6:Mn4+,Mg2+far-red emitting phosphors with internal quantum efficiency as high as 92% and good thermal stability were developed for plant growth LEDs.

High quantum efficiency Ce:(Lu,Y)3(Al,Sc)2Al3O12 transparent ceramics with excellent thermal stability for high-power white LEDs/LDs

2020 ◽  
Vol 8 (46) ◽  
pp. 16427-16435
Author(s):  
Yuelong Ma ◽  
Le Zhang ◽  
Tianyuan Zhou ◽  
Chen Hou ◽  
Jian Kang ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Quantum Efficiency ◽  
High Power ◽  
Light Emitting Diode ◽  
Transparent Ceramics ◽  
High Quantum Efficiency ◽  
Excellent Thermal Stability ◽  
Light Emitting ◽  
White Leds ◽  
High Quantum

Transparent ceramics (TCs) with high quantum efficiency and excellent thermal stability are essential for the applications in high-power remote excitation white light-emitting diode or laser diode (LED/LD) lighting devices as color convertors.

scholarly journals High homogeneity, thermal stability and external quantum efficiency of Ce:YAG single-crystal powder phosphors for white LEDs

2016 ◽  
Vol 124 (5) ◽  
pp. 574-578 ◽  
Author(s):  
Stelian ARJOCA ◽  
Encarnación G. VÍLLORA ◽  
Daisuke INOMATA ◽  
Yusuke ARAI ◽  
Yujin CHO ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Single Crystal ◽  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
White Leds ◽  
High Homogeneity

DESIGN AND SYNTHESES OF HIGHLY EFFICIENT AND THERMALLY-STABLE IMIDAZOLE CHROMOPHORES BEARING DIAMINO GROUPS FOR NONLINEAR OPTICS

2005 ◽  
Vol 14 (01) ◽  
pp. 61-65 ◽  
Author(s):  
WEI WU ◽  
ZHAOLI ZHANG ◽  
XIAOYUN ZHANG
Keyword(s):  
Thermal Stability ◽  
Charge Transfer ◽  
Nonlinear Optics ◽  
Second Order ◽  
High Thermal Stability ◽  
Transfer System ◽  
Thermally Stable ◽  
Highly Efficient ◽  
Nlo Materials ◽  
Good Transparency

Four imidazole type chromophores bearing diamino groups were designed and synthesized with a facile method. All the chromophores possess efficient second-order nonlinearities based on MOPAC/AM1 calculation, high thermal stability and good transparency for the application in NLO materials. Chromophore 1d, an X-type dual charge transfer system, shows well-balanced nonlinearity/transparency properties.

scholarly journals Novel Eu3+-activated Ba2Y5B5O17 red-emitting phosphors for white LEDs: high color purity, high quantum efficiency and excellent thermal stability

RSC Advances ◽  
2018 ◽  
Vol 8 (41) ◽  
pp. 23323-23331 ◽  
Author(s):  
G. Annadurai ◽  
Balaji Devakumar ◽  
Heng Guo ◽  
R. Vijayakumar ◽  
Bin Li ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Quantum Efficiency ◽  
Color Purity ◽  
High Quantum Efficiency ◽  
Excellent Thermal Stability ◽  
White Leds ◽  
High Quantum ◽  
High Color Purity ◽  
Red Emitting Phosphor

A novel Ba2Y5B5O17:Eu3+ red-emitting phosphor with high color purity, high quantum efficiency and excellent thermal stability was developed.

Highly efficient near-UV-excitable Ca2YHf2Al3O12:Ce3+,Tb3+ green-emitting garnet phosphors with potential application in high color rendering warm-white LEDs

2020 ◽  
Vol 8 (13) ◽  
pp. 4408-4420 ◽  
Author(s):  
Shaoying Wang ◽  
Balaji Devakumar ◽  
Qi Sun ◽  
Jia Liang ◽  
Liangling Sun ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
Potential Application ◽  
Internal Quantum Efficiency ◽  
White Leds ◽  
Highly Efficient ◽  
Color Rendering

Novel near-UV-excitable Ca2YHf2Al3O12:Ce3+,Tb3+ green phosphors with a highest internal quantum efficiency of 86.6% and external quantum efficiency of 63.1% were reported for high-CRI warm-white LEDs.

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.

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