Moisture-resistant and highly efficient narrow-band red-emitting fluoride phosphor K2NaGaF6:Mn4+ for warm white LED application

2019 ◽  
Vol 7 (26) ◽  
pp. 7906-7914 ◽  
Author(s):  
Jun Gao ◽  
Haomiao Zhu ◽  
Renfu Li ◽  
Decai Huang ◽  
Benlong Luo ◽  
...  
Keyword(s):  
Narrow Band ◽  
White Led ◽  
Site Occupation ◽  
Highly Efficient ◽  
Moisture Resistant

The site occupation/evolution of Mn4+ ions in K2NaGaF6 crystals and their excellent moisture-resistant performance.

Highly Efficient and Stable Narrow-Band Red Phosphor Cs2SiF6:Mn4+ for High-Power Warm White LED Applications

ACS Photonics ◽  
2017 ◽  
Vol 4 (10) ◽  
pp. 2556-2565 ◽  
Author(s):  
Enhai Song ◽  
Yayun Zhou ◽  
Xiao-Bao Yang ◽  
Zifeng Liao ◽  
Weiren Zhao ◽  
...  
Keyword(s):  
High Power ◽  
Narrow Band ◽  
White Led ◽  
Red Phosphor ◽  
Highly Efficient

Bismuth Activated Narrow‐Band Cyan Garnet Phosphor Ca 3 Y 2 Ge 3 O 12 :Bi 3+ for NUV‐Pumped White LED Application

2021 ◽  
Author(s):  
Yongwang Li ◽  
Yanqun Shao ◽  
Weibin Zhang ◽  
ShanShan Ye ◽  
Jiangcong Zhou ◽  
...  
Keyword(s):  
Narrow Band ◽  
White Led

A green synthetic route to the highly efficient K2SiF6:Mn4+narrow-band red phosphor for warm white light-emitting diodes

2018 ◽  
Vol 6 (11) ◽  
pp. 2741-2746 ◽  
Author(s):  
Ziyang Hou ◽  
Xueyuan Tang ◽  
Xuefang Luo ◽  
Tianliang Zhou ◽  
Lin Zhang ◽  
...  
Keyword(s):  
White Light ◽  
Light Emitting Diodes ◽  
Narrow Band ◽  
Synthetic Route ◽  
Red Phosphor ◽  
Light Emitting ◽  
Highly Efficient ◽  
Warm White Light ◽  
White Light Emitting Diodes

A green synthetic route to the highly efficient K2SiF6:Mn4+narrow-band red phosphor for warm white light-emitting diodes.

Moisture-resistant Nb-based fluoride K2NbF7:Mn4+ and oxyfluoride phosphor K3(NbOF5)(HF2):Mn4+: synthesis, improved luminescence performance and application in warm white LED

2021 ◽  
Author(s):  
Ge Pang ◽  
Feng Hong ◽  
Xiaoyi Liu ◽  
Yunxiao Zhang ◽  
Chunyan Zhang ◽  
...  
Keyword(s):  
Acid Solution ◽  
High Efficiency ◽  
Precipitation Method ◽  
White Led ◽  
Co Precipitation ◽  
Moisture Resistant ◽  
Luminescence Performance

Herein, high-efficiency Nb-based oxyfluoride K3(NbOF5)(HF2):Mn4+ and fluoride K2NbF7:Mn4+ phosphors were successfully synthesized using different amounts of HF acid solution by simple co-precipitation method. XRD, SEM and EDS were used to...

Dopant preferential site occupation and high efficiency white emission in K2BaCa(PO4)2:Eu2+,Mn2+ phosphors for high quality white LED applications

2019 ◽  
Vol 6 (5) ◽  
pp. 1289-1298 ◽  
Author(s):  
Xinguo Zhang ◽  
Zhenpeng Zhu ◽  
Ziying Guo ◽  
Zishan Sun ◽  
Zichao Yang ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
External Quantum Efficiency ◽  
High Efficiency ◽  
White Led ◽  
High Quality ◽  
White Emission ◽  
Site Occupation ◽  
Preferential Site ◽  
Color Tunable

Novel color-tunable and white-emitting K2BaCa(PO4)2:Eu2+,Mn2+ phosphors with external quantum efficiency of 70% were developed for NUV LED.

Synthesis and warm-white LED applications of an efficient narrow-band red emitting phosphor, Rb2ZrF6:Mn4+

2017 ◽  
Vol 5 (29) ◽  
pp. 7253-7261 ◽  
Author(s):  
L. Y. Wang ◽  
E. H. Song ◽  
Y. Y. Zhou ◽  
T. T. Deng ◽  
S. Ye ◽  
...  
Keyword(s):  
Narrow Band ◽  
Precipitation Method ◽  
White Led ◽  
Red Phosphor ◽  
Yellow Phosphor ◽  
Co Precipitation ◽  
Red Emitting Phosphor

Phosphor Rb2ZrF6:Mn4+has been synthesizedviaa co-precipitation method. Series of WLEDs were fabricated by combining YAG:Ce3+yellow phosphor and different amount of Rb2ZrF6:Mn4+red phosphor with InGaN blue chips.

Ce-Doped La3Si6.5Al1.5N9.5O5.5, a Rare Highly Efficient Blue-Emitting Phosphor at Short Wavelength toward High Color Rendering White LED Application

2017 ◽  
Vol 9 (27) ◽  
pp. 22665-22675 ◽  
Author(s):  
Chun-Yun Wang ◽  
Takashi Takeda ◽  
Otmar Melvin ten Kate ◽  
Masataka Tansho ◽  
Kenzo Deguchi ◽  
...  
Keyword(s):  
Short Wavelength ◽  
White Led ◽  
Highly Efficient ◽  
Color Rendering

Narrow band red emitting europium complexes and their application in smart white LEDs and vapoluminescent sensors

2020 ◽  
Vol 49 (19) ◽  
pp. 6205-6219 ◽  
Author(s):  
Rachna Devi ◽  
Sivakumar Vaidyanathan
Keyword(s):  
Narrow Band ◽  
White Led ◽  
Acid Base ◽  
Europium Complexes ◽  
White Leds ◽  
Color Rendering Index ◽  
Color Rendering

The synthesized molecular Eu-complex based hybrid white LED showed superior color rendering index. In addition, the complex also showed on-off-on luminescence with exposure to acid–base vapours.

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