Promotion of solid-state lighting for ZnCdSe quantum dot modified-YAG-based white light-emitting diodes

RSC Advances ◽  
2016 ◽  
Vol 6 (57) ◽  
pp. 51989-51996 ◽  
Author(s):  
Shu-Ru Chung ◽  
Sheng-Shiun Chen ◽  
Kuan-Wen Wang ◽  
Cyuan-Bin Siao
Keyword(s):  
Solid State ◽  
Quantum Dot ◽  
White Light ◽  
Light Emitting Diodes ◽  
Solid State Lighting ◽  
Light Emitting ◽  
Photoluminescence Quantum Yield ◽  
Color Rendering Index ◽  
White Light Emitting Diodes ◽  
Color Rendering

In this study, the effect of quantum dot (QD) addition and photoluminescence quantum yield (PL QY) of QDs on the luminous efficacy and color rendering index (CRI) of white light-emitting diodes (LEDs) has been investigated.

scholarly journals Color Rendering Index Thermal Stability Improvement of Glass-Based Phosphor-Converted White Light-Emitting Diodes for Solid-State Lighting

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Chun-Chin Tsai
Keyword(s):  
Thermal Stability ◽  
Solid State ◽  
White Light ◽  
Light Emitting Diodes ◽  
Solid State Lighting ◽  
Light Emitting ◽  
Warm White Light ◽  
Color Rendering Index ◽  
White Light Emitting Diodes ◽  
Color Rendering

High color rendering index performance has been required for phosphor-converted warm-white light-emitting diodes (PC-WWLEDs) in lighting industry. The characteristics of low-temperature fabricated phosphor (yellow: Ce3+:YAG, green: Tb3+:YAG, and red: CaAlClSiN3:Eu2+) doped glass were presented for applications to high color rendering index warm-white-light-emitting diodes. Color coordinates (x, y) = (0.36, 0.29), quantum yield (QY) = 55.6%, color rending index (CRI) = 85.3, and correlated color temperature (CCT) = 3923 K were characterized. Glass-based PC-WWLEDs was found able to maintain good thermal stability for long-time high-temperature operation. QY decay, CRI remenance, and chromaticity shift were also analyzed for glass- and silicone-based high-power PC-WLEDs by thermal aging at 150°C and 250°C for industrial test standard’s aging time 1008 hours. Better than the silicone’s, thermal stability of glass-based PC-WLEDs has been improved. The resulted high color rendering index (CRI) glass phosphor potentially can be used as a phosphor layer for high-performance and low-cost PC-WLEDs used in next-generation indoor solid-state lighting applications.

Ultra-high color rendering warm-white light-emitting diodes based on an efficient green-emitting garnet phosphor for solid-state lighting

2021 ◽  
Vol 405 ◽  
pp. 126950 ◽  
Author(s):  
Xiaoyong Huang ◽  
Jia Liang ◽  
Sami Rtimi ◽  
Balaji Devakumar ◽  
Zongjie Zhang
Keyword(s):  
Solid State ◽  
White Light ◽  
Light Emitting Diodes ◽  
Solid State Lighting ◽  
Light Emitting ◽  
Warm White Light ◽  
White Light Emitting Diodes ◽  
Color Rendering

High-color rendering indices performance of glass based phosphor-converted white light-emitting diodes for solid state lighting

2014 ◽  
Author(s):  
Chun-Chin Tsai ◽  
Wei-Chih Cheng ◽  
Guan-Hao Chen ◽  
Yu-Chun Lee ◽  
Cheng Ta Kuo ◽  
...  
Keyword(s):  
Solid State ◽  
White Light ◽  
Light Emitting Diodes ◽  
Solid State Lighting ◽  
Light Emitting ◽  
White Light Emitting Diodes ◽  
Color Rendering

scholarly journals White Light‐Emitting Diodes: High Color‐Rendering Index and Stable White Light‐Emitting Diodes by Assembling Two Broadband Emissive Self‐Trapped Excitons (Adv. Mater. 2/2021)

2021 ◽  
Vol 33 (2) ◽  
pp. 2170010
Author(s):  
Zhuangzhuang Ma ◽  
Zhifeng Shi ◽  
Dongwen Yang ◽  
Yawen Li ◽  
Fei Zhang ◽  
...  
Keyword(s):  
White Light ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Color Rendering Index ◽  
White Light Emitting Diodes ◽  
Color Rendering

Fluorene-containing polyhedral oligomericsilsesquioxanes modified hyperbranched polymer for white light-emitting diodes with ultra-high color rendering index of 96

2021 ◽  
Vol 298 ◽  
pp. 122122
Author(s):  
Mixue Wang ◽  
Xiaozhen Wei ◽  
Weixuan Zhang ◽  
Haocheng Zhao ◽  
Yuling Wu ◽  
...  
Keyword(s):  
White Light ◽  
Hyperbranched Polymer ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Color Rendering Index ◽  
White Light Emitting Diodes ◽  
Color Rendering

Shape optimization of quantum-dot caps for high color-rendering white light-emitting diodes studied by optical simulation

2021 ◽  
Author(s):  
Jung-Gyun Lee ◽  
Gi Jung Lee ◽  
Seung Chan Hong ◽  
Jae-Hyeon Ko ◽  
Taehee Park ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Shape Optimization ◽  
White Light ◽  
Light Emitting Diodes ◽  
Optical Simulation ◽  
Light Emitting ◽  
White Light Emitting Diodes ◽  
Color Rendering
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