Fine ceramics (advanced ceramics, advanced technical ceramics). Absolute measurement of internal quantum efficiency of phosphors for white light emitting diodes using an integrating sphere

2017 ◽  
Keyword(s):  
Quantum Efficiency ◽  
White Light ◽  
Internal Quantum Efficiency ◽  
Absolute Measurement ◽  
Integrating Sphere ◽  
Advanced Ceramics ◽  
Light Emitting ◽  
Technical Ceramics ◽  
White Light Emitting Diodes ◽  
Fine Ceramics

K2Ln(PO4)(WO4):Tb3+,Eu3+ (Ln = Y, Gd and Lu) phosphors: highly efficient pure red and tuneable emission for white light-emitting diodes

2015 ◽  
Vol 3 (9) ◽  
pp. 2107-2114 ◽  
Author(s):  
Dawei Wen ◽  
Jiajun Feng ◽  
Junhao Li ◽  
Jianxin Shi ◽  
Mingmei Wu ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
White Light ◽  
Light Emitting Diodes ◽  
Internal Quantum Efficiency ◽  
Red Phosphor ◽  
Light Emitting ◽  
Highly Efficient ◽  
White Light Emitting Diodes

K2Tb0.5Eu0.5(PO4)(WO4) red phosphor with an internal quantum efficiency of 76.45% is produced. Furthermore, the luminescence colour can be tuned from green to red by adjusting the ratio of Tb3+ and Eu3+.

scholarly journals Mn4+-activated Li3Mg2SbO6 as an ultrabright fluoride-free red-emitting phosphor for warm white light-emitting diodes

RSC Advances ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 3429-3435 ◽  
Author(s):  
Shaoying Wang ◽  
Qi Sun ◽  
Balaji Devakumar ◽  
Jia Liang ◽  
Liangling Sun ◽  
...  
Keyword(s):  
Quantum Efficiency ◽  
White Light ◽  
Light Emitting Diodes ◽  
Internal Quantum Efficiency ◽  
Light Emitting ◽  
Warm White Light ◽  
White Light Emitting Diodes ◽  
Red Emitting Phosphor

Mn4+-activated Li3Mg2SbO6 red-emitting phosphor with internal quantum efficiency as high as 83% was developed for blue-pumped warm-white light-emitting diodes.

Efficient and controllable photoluminescence in novel solid solution Ca1−xSrxHf4(PO4)6:Eu2+ phosphors with high thermal stability for white light emitting diodes

CrystEngComm ◽  
2018 ◽  
Vol 20 (31) ◽  
pp. 4383-4394 ◽  
Author(s):  
Shuangyu Xin ◽  
Miao Gao ◽  
Chuang Wang ◽  
Xuejiao Wang ◽  
Ge Zhu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Solid Solution ◽  
Quantum Efficiency ◽  
White Light ◽  
Light Emitting Diodes ◽  
High Thermal Stability ◽  
Photoluminescence Properties ◽  
Light Emitting ◽  
White Light Emitting Diodes

The tunable photoluminescence properties of (Ca,Sr)Hf4(PO4)6:Eu2+ solid solution phosphors with high thermal stability and quantum efficiency were investigated.

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