scholarly journals Novel Emitting System Based on a Multifunctional Bipolar Phosphor: An Effective Approach for Highly Efficient Warm‐White Light‐Emitting Devices with High Color‐Rendering Index at High Luminance

2016 ◽  
Vol 28 (28) ◽  
pp. 5963-5968 ◽  
Author(s):  
Mingxu Du ◽  
Yansong Feng ◽  
Dongxia Zhu ◽  
Tai Peng ◽  
Yu Liu ◽  
...  
Keyword(s):  
White Light ◽  
High Luminance ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Highly Efficient ◽  
Warm White Light ◽  
Color Rendering Index ◽  
Color Rendering

Red Phosphor Rb2NbOF5:Mn4+ for Warm White Light-Emitting Diodes with a High Color-Rendering Index

2018 ◽  
Vol 58 (1) ◽  
pp. 456-461 ◽  
Author(s):  
Zhengliang Wang ◽  
Zhiyu Yang ◽  
Zhaofeng Yang ◽  
Qianwen Wei ◽  
Qiang Zhou ◽  
...  
Keyword(s):  
White Light ◽  
Light Emitting Diodes ◽  
Red Phosphor ◽  
Light Emitting ◽  
Warm White Light ◽  
Color Rendering Index ◽  
White Light Emitting Diodes ◽  
Color Rendering

Color-tunable Al6Si2O13:Eu2+,Mn2+ phosphor with high color rendering index based on energy transfer for warm white LEDs

2018 ◽  
Vol 42 (18) ◽  
pp. 15207-15214 ◽  
Author(s):  
Bo Yan ◽  
Gui-Gen Wang ◽  
Long-Fei Liu ◽  
Xin-Zhong Wang ◽  
You-Xiao Chen ◽  
...  
Keyword(s):  
Energy Transfer ◽  
White Light ◽  
White Led ◽  
Light Emitting ◽  
White Leds ◽  
Warm White Light ◽  
Color Tunable ◽  
Color Rendering Index ◽  
Color Rendering

A type of warm-white-light-emitting Al6Si2O13:Eu2+,Mn2+ phosphor with high color rendering index was synthesized for UV-excited white LED.

scholarly journals A broadband cyan-emitting Ca2LuZr2(AlO4)3:Ce3+ garnet phosphor for near-ultraviolet-pumped warm-white light-emitting diodes with an improved color rendering index

2020 ◽  
Vol 8 (3) ◽  
pp. 1095-1103 ◽  
Author(s):  
Liangling Sun ◽  
Balaji Devakumar ◽  
Jia Liang ◽  
Shaoying Wang ◽  
Qi Sun ◽  
...  
Keyword(s):  
White Light ◽  
Light Emitting Diodes ◽  
Emission Spectra ◽  
Light Emitting ◽  
White Leds ◽  
Near Ultraviolet ◽  
Warm White Light ◽  
Color Rendering Index ◽  
White Light Emitting Diodes ◽  
Color Rendering

Broadband cyan-emitting Ca2LuZr2(AlO4)3:Ce3+ garnet phosphors enabled to fill the cyan gap in the emission spectra of near-ultraviolet-pumped warm-white LEDs, thus resulting in improved color rendering index.

scholarly journals Warm-white light-emitting diode with high color rendering index fabricated by combining trichromatic InGaN emitter with single red phosphor

2015 ◽  
Vol 23 (7) ◽  
pp. A232 ◽  
Author(s):  
Jinn-Kong Sheu ◽  
Fu-Bang Chen ◽  
Yen-Chin Wang ◽  
Chih-Chiang Chang ◽  
Shih-Hsien Huang ◽  
...  
Keyword(s):  
White Light ◽  
Light Emitting Diode ◽  
Red Phosphor ◽  
Light Emitting ◽  
Warm White Light ◽  
Color Rendering Index ◽  
Color Rendering

Ce-Doped YAG Nanophosphor and Red Emitting CuInS2/ZnS Core/Shell Quantum Dots for Warm White Light-Emitting Diode with High Color Rendering Index

2013 ◽  
Vol 6 (1) ◽  
pp. 252-258 ◽  
Author(s):  
Abdelhay Aboulaich ◽  
Martyna Michalska ◽  
Raphaël Schneider ◽  
Audrey Potdevin ◽  
Jérôme Deschamps ◽  
...  
Keyword(s):  
Quantum Dots ◽  
White Light ◽  
Light Emitting Diode ◽  
Core Shell ◽  
Light Emitting ◽  
Warm White Light ◽  
Color Rendering Index ◽  
Color Rendering

Silica-encapsulated semiconductor polymer dots as stable phosphors for white light-emitting diodes

2015 ◽  
Vol 3 (28) ◽  
pp. 7281-7285 ◽  
Author(s):  
Kaiwen Chang ◽  
Xiaoju Men ◽  
Haobin Chen ◽  
Zhihe Liu ◽  
Shengyan Yin ◽  
...  
Keyword(s):  
Thermal Stability ◽  
White Light ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Polymer Dots ◽  
Color Rendering Index ◽  
White Light Emitting Diodes ◽  
Color Rendering ◽  
Thermal Stability Of

Semiconductor polymer dots were encapsulated into a SiO2matrix to form highly fluorescent nanocomposites. The photostability and thermal stability of nanocomposites were greatly improved, making them promising candidates for white-light emitting devices with a high color-rendering index.

Sr3Ce(PO4)3:Eu2+: a broadband yellow-emitting phosphor for near ultraviolet-pumped white light-emitting devices

2016 ◽  
Vol 4 (6) ◽  
pp. 1170-1177 ◽  
Author(s):  
Pengpeng Dai ◽  
Szu-Ping Lee ◽  
Ting-Shan Chan ◽  
Chien-Hao Huang ◽  
Yun-Wei Chiang ◽  
...  
Keyword(s):  
White Light ◽  
Luminous Efficiency ◽  
Light Emitting ◽  
Light Emitting Devices ◽  
Near Ultraviolet ◽  
Color Rendering Index ◽  
Complementary Color ◽  
Color Rendering

White lighting-emitting diodes (WLEDs) using binary complementary color phosphors for n-UVLED chips are highly expected to realize a lighting source with high color rendering index and high luminous efficiency.

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.

High color rendering index warm white light emitting diodes fabricated from AgInS2/ZnS quantum dot/PVA flexible hybrid films

2016 ◽  
Vol 18 (46) ◽  
pp. 31634-31639 ◽  
Author(s):  
Lan Wang ◽  
Xiaojiao Kang ◽  
Daocheng Pan
Keyword(s):  
Quantum Dot ◽  
White Light ◽  
White Led ◽  
Hybrid Films ◽  
Light Emitting ◽  
Warm White Light ◽  
Luminescent Films ◽  
Color Rendering Index ◽  
White Light Emitting Diodes ◽  
Color Rendering

A high color rendering warm-white LED is fabricated by fixing suitable thicknesses of the green and red AIS/ZnS QD/PVA luminescent films on top of a conventional blue InGaN chip.

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