Improved luminescence and energy-transfer properties of Ca14Al10Zn6O35:Ti4+,Mn4+ deep-red-emitting phosphors with high brightness for light-emitting diode (LED) plant-growth lighting

2018 ◽  
Vol 47 (38) ◽  
pp. 13713-13721 ◽  
Author(s):  
Zhi Zhou ◽  
Yiran Li ◽  
Mao Xia ◽  
Yuan Zhong ◽  
Nan Zhou ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Plant Growth ◽  
Light Emitting Diode ◽  
High Brightness ◽  
Red Emission ◽  
Light Emitting ◽  
Transfer Properties

Energy transfer from Ti4+ to Mn4+ was observed and verified in high brightness deep-red emission phosphors CAZO:Ti4+,Mn4+.

scholarly journals A STUDY OF RED-EMITTING PHOSPHOR OF K2SiF6:Mn4+ FOR WARM WHITE LEDs

2018 ◽  
Vol 56 (1A) ◽  
pp. 183 ◽  
Author(s):  
Nguyen Le Anh
Keyword(s):  
Energy Transfer ◽  
Narrow Band ◽  
Light Emitting Diode ◽  
Forbidden States ◽  
Red Emission ◽  
Light Emitting ◽  
White Leds ◽  
Band Emission ◽  
Red Emitting Phosphor

This study focuses on the fabrication of red-emitting phosphor based on K2SiF6: Mn4+ phosphor. Characteristic emissive peaks in the red region of the Mn4+ ions involve the energy transfer from spin-forbidden states of 2Eg → 4A2, showing narrow band emission peaks at 609, 614, 631, 635 and 647 nm. Meanwhile, their absorptive peaks involve the energy transfer from spin-allowed states of 4A2 → 4Tg; the excited wavelength of the Mn4+ is in the range 360 - 460 nm. Thus, the K2SiF6: Mn4+ phosphor is particularly suitable for redundancy of 460 nm - Light Emitting Diode (LED); it complements the red emission of the commercial White LEDs.

Dy3+@Mn4+co-doped Ca14Ga10−mAlmZn6O35far-red emitting phosphors with high brightness and improved luminescence and energy transfer properties for plant growth LED lights

2017 ◽  
Vol 5 (32) ◽  
pp. 8201-8210 ◽  
Author(s):  
Zhi Zhou ◽  
Mao Xia ◽  
Yuan Zhong ◽  
Shujie Gai ◽  
Shengxiong Huang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
Plant Growth ◽  
Solid State Reaction Method ◽  
High Brightness ◽  
Red Phosphor ◽  
Led Lighting ◽  
Effective Energy Transfer ◽  
Led Lights ◽  
Transfer Properties ◽  
Co Doped

A novel deep red phosphor Ca14Ga10−mAlmZn6O35:Dy3+,Mn4+(CGAZO:Dy3+,Mn4+) for plant growth LED lighting was successfully synthesizedviahigh-temperature solid-state reaction method and an effective energy transfer from Dy3+to Mn4+in the CGAZO host had been verified.

(Invited) High Brightness, Large Scale GaN Based Light-Emitting Diode Grown on 8-Inch Si Substrate

2014 ◽  
Vol 61 (4) ◽  
pp. 71-78
Author(s):  
S.-J. Lee ◽  
H.-J. Park ◽  
J.-B. Park ◽  
D.-W. Jeon ◽  
J. H. Baek ◽  
...  
Keyword(s):  
Large Scale ◽  
Light Emitting Diode ◽  
Si Substrate ◽  
High Brightness ◽  
Light Emitting

High Brightness Blue InGaN/GaN Light Emitting Diode on Nonpolarm-plane Bulk GaN Substrate

2007 ◽  
Vol 46 (No. 40) ◽  
pp. L960-L962 ◽  
Author(s):  
Kenji Iso ◽  
Hisashi Yamada ◽  
Hirohiko Hirasawa ◽  
Natalie Fellows ◽  
Makoto Saito ◽  
...  
Keyword(s):  
Light Emitting Diode ◽  
High Brightness ◽  
Light Emitting ◽  
Bulk Gan

Cohosts with efficient host-to-emitter energy transfer for stable blue phosphorescent organic light-emitting diodes

2021 ◽  
Author(s):  
Soo-Ghang Ihn ◽  
Eun Suk Kwon ◽  
Yongsik Jung ◽  
Jong Soo Kim ◽  
Sungho Nam ◽  
...  
Keyword(s):  
Energy Transfer ◽  
High Performance ◽  
Light Emitting Diode ◽  
Organic Light Emitting Diodes ◽  
Operating Voltage ◽  
Light Emitting ◽  
Organic Light Emitting Diode ◽  
Organic Light ◽  
Low Efficiency ◽  
Blue Phosphorescent

We present a high-performance blue phosphorescent organic light-emitting diode exhibiting a low operating voltage (4.1 V), high external quantum efficiency (23.4%, at 500 cd m-2) with a low efficiency roll-off...

Red Emission of InGaN/GaN Multiple-Quantum-Well Light-Emitting Diode Structures with Indium-Rich Clusters

2018 ◽  
Vol 215 (23) ◽  
pp. 1800455 ◽  
Author(s):  
Yulin Meng ◽  
Lianshan Wang ◽  
Guijuan Zhao ◽  
Fangzheng Li ◽  
Huijie Li ◽  
...  
Keyword(s):  
Quantum Well ◽  
Light Emitting Diode ◽  
Multiple Quantum Well ◽  
Multiple Quantum ◽  
Red Emission ◽  
Light Emitting

Tunable luminescence from Sm3+, Ce3+ codoped Al2O3–La2O3–SiO2 glasses for white light emission

2009 ◽  
Vol 24 (5) ◽  
pp. 1730-1734 ◽  
Author(s):  
Hucheng Yang ◽  
G. Lakshminarayana ◽  
Yu Teng ◽  
Shifeng Zhou ◽  
Jianrong Qiu
Keyword(s):  
Energy Transfer ◽  
White Light ◽  
Spectral Properties ◽  
Light Emission ◽  
Light Emitting Diode ◽  
Fluorescence Decay ◽  
White Light Emission ◽  
Luminescence Properties ◽  
Light Emitting ◽  
Luminescence Efficiency

Sm3+, Ce3+ codoped Al2O3–La2O3–SiO2 glasses were prepared and their luminescence properties were characterized. Blue-cyan to orange-red tunable luminescence was observed from these glasses with different excitation wavelengths ranging from 385 to 410 nm. White light emission with internal luminescence efficiency 42% has been observed using commercially available purple light-emitting-diode excitation. The energy transfer between Ce3+ and Sm3+ has also been investigated from fluorescence decay curves and spectral properties.

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