A single-phase full-visible-spectrum phosphor for white light-emitting diodes with ultra-high color rendering

2020 ◽  
Vol 49 (48) ◽  
pp. 17796-17805
Author(s):  
Xiangting Zhang ◽  
Dan Zhang ◽  
Zhibo Zheng ◽  
Baofeng Zheng ◽  
Yanhua Song ◽  
...  
Keyword(s):  
Energy Transfer ◽  
White Light ◽  
Single Phase ◽  
Light Emitting Diodes ◽  
Visible Spectrum ◽  
Light Emitting ◽  
White Light Emitting Diodes ◽  
Color Rendering

Through the regulation of energy transfer in the phosphor, a single-phase full-visible-spectrum YMAS:Eu2+,Mn2+ phosphor-converted WLED achieves an ultra-high Ra value.

Crystal structure and photoluminescence tuning of novel single-phase Ca8ZnLu(PO4)7:Eu2+,Mn2+ phosphors for near-UV converted white light-emitting diodes

2019 ◽  
Vol 7 (27) ◽  
pp. 8374-8382 ◽  
Author(s):  
Jing Yan ◽  
Ziwang Zhang ◽  
Dawei Wen ◽  
Jianbang Zhou ◽  
Yiqin Xu ◽  
...  
Keyword(s):  
Crystal Structure ◽  
White Light ◽  
Single Phase ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Color Tunable ◽  
Color Rendering Index ◽  
White Light Emitting Diodes ◽  
Color Rendering

A single phase color-tunable white light emitting Ca8ZnLu(PO4)7:Eu2+,Mn2+ phosphor with high color rendering index has been rationally designed via combination of cyan and red emissions.

Combination of carbon dot and polymer dot phosphors for white light-emitting diodes

Nanoscale ◽  
2015 ◽  
Vol 7 (28) ◽  
pp. 12045-12050 ◽  
Author(s):  
Chun Sun ◽  
Yu Zhang ◽  
Kai Sun ◽  
Claas Reckmeier ◽  
Tieqiang Zhang ◽  
...  
Keyword(s):  
Energy Transfer ◽  
White Light ◽  
Light Emitting Diodes ◽  
Color Stability ◽  
Light Emitting ◽  
Color Rendering Index ◽  
Carbon Based Nanomaterials ◽  
White Light Emitting Diodes ◽  
Color Rendering ◽  
Excellent Color

The white light-emitting diodes with high color rendering index (85–96) and widely variable color temperatures(2805–7786 K) were fabricated from carbon-based nanomaterials with weak reabsorption and no energy transfer crosstalk and showed excellent color stability.

53% Efficient Red Emissive Carbon Quantum Dots for High Color Rendering and Stable Warm White‐Light‐Emitting Diodes

2017 ◽  
Vol 29 (37) ◽  
pp. 1702910 ◽  
Author(s):  
Zifei Wang ◽  
Fanglong Yuan ◽  
Xiaohong Li ◽  
Yunchao Li ◽  
Haizheng Zhong ◽  
...  
Keyword(s):  
Quantum Dots ◽  
White Light ◽  
Light Emitting Diodes ◽  
Carbon Quantum Dots ◽  
Light Emitting ◽  
Warm White Light ◽  
White Light Emitting Diodes ◽  
Color Rendering
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