Full-visible-spectrum lighting enabled by an excellent cyan-emitting garnet phosphor

2020 ◽  
Vol 8 (14) ◽  
pp. 4934-4943 ◽  
Author(s):  
Jia Liang ◽  
Balaji Devakumar ◽  
Liangling Sun ◽  
Shaoying Wang ◽  
Qi Sun ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
Visible Spectrum ◽  
White Leds ◽  
Color Rendering

Cyan-emitting Ca2YHf2Al3O12:xCe3+ garnet phosphors with a high photoluminescence quantum efficiency of up to 89.5% were developed for fabricating high color rendering warm-white LEDs.

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.

scholarly journals Near-ultraviolet LED of the External Quantum Efficiency Over 45% and its Application to High-color Rendering Phosphor Conversion White LEDs

2008 ◽  
Vol 32 (1) ◽  
pp. 39-42 ◽  
Author(s):  
Hiroaki SAKUTA ◽  
Takeshi FUKUI ◽  
Tsutomu MIYACHI ◽  
Kunihito KAMON ◽  
Hideki HAYASHI ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
White Leds ◽  
Near Ultraviolet ◽  
Color Rendering

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.

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.

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