A CaS:Eu based red-emitting phosphor with significantly improved thermal quenching resistance for LED lighting applications

2014 ◽  
Vol 129 ◽  
pp. 134-136 ◽  
Author(s):  
Liu Yang ◽  
Na Zhang ◽  
Ruoyu Zhang ◽  
Bo Wen ◽  
Haili Li ◽  
...  
RSC Advances ◽  
2017 ◽  
Vol 7 (78) ◽  
pp. 49473-49479 ◽  
Author(s):  
Lin Qin ◽  
Peiqing Cai ◽  
Cuili Chen ◽  
Jing Wang ◽  
Hyo Jin Seo

A novel Ba5AlF13:Mn4+red phosphor which shows significant anti-thermal quenching behavior.


2020 ◽  
Vol 49 (33) ◽  
pp. 11613-11617
Author(s):  
Hong Li ◽  
Yan Liu ◽  
Shu Tang ◽  
Lijun Luo ◽  
Qiang Zhou ◽  
...  

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.


2020 ◽  
Vol 847 ◽  
pp. 156249
Author(s):  
Xue Geng ◽  
Yan Xie ◽  
Yingying Ma ◽  
Yuanyuan Liu ◽  
Junmeng Luo ◽  
...  

2018 ◽  
Vol 67 (24) ◽  
pp. 247801
Author(s):  
Zhao Wang ◽  
Ping Zhao-Yan ◽  
Zheng Qing-Hua ◽  
Zhou Wei-Wei

2020 ◽  
Vol 8 (34) ◽  
pp. 11906-11915 ◽  
Author(s):  
Paul Legentil ◽  
Fabrice Leroux ◽  
Sandrine Therias ◽  
Damien Boyer ◽  
Geneviève Chadeyron

Domestic lighting using white light-emitting diodes (WLEDs) requires a choice of materials to be eco-friendly as well as economically viable.


2018 ◽  
Vol 233 (7) ◽  
pp. 489-499 ◽  
Author(s):  
David Böhnisch ◽  
Thomas Jansen ◽  
Rainer Pöttgen ◽  
Thomas Jüstel

Abstract This work presents and disentangles the temperature dependent optical properties of the red-emitting phosphor Na3GaF6:Mn4+. Moreover, crystal field and Racah parameters were investigated. It was proven that the material is suitable for the application in warm white LEDs due to its high quantum yield of about 83%, little thermal quenching of the photoluminescence up to 410 K, high lumen equivalent of about 220 lm/W, and strong absorption at 450 nm. In addition, different DFT approaches were used to investigate its band structure. The calculated data were compared to those obtained experimentally. Red phosphor spectra were calculated to evaluate the suitability of red line-emitting phosphors for the application in warm white emitting pcLEDs. Finally, warm white emitting LEDs comprising Na3GaF6:Mn4+ were constructed in order to show the potential of Na3GaF6:Mn4+ serving as a red component in phosphor blends for future warm white pcLEDs.


2019 ◽  
Vol 44 (24) ◽  
pp. 6057
Author(s):  
Young Ji Park ◽  
Gyu Jin Jeong ◽  
Jin Ho Kim ◽  
Youngjin Lee ◽  
Sun Woog Kim ◽  
...  

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