Self‐Quenching‐Resistant Red Emissive Carbon Dots with High Stability for Warm White Light‐Emitting Diodes with a High Color Rendering Index

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.

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Cesium lead halide perovskite quantum dot-based warm white light-emitting diodes with high color rendering index

Journal of Nanoparticle Research ◽

10.1007/s11051-017-3862-2 ◽

2017 ◽

Vol 19 (5) ◽

Cited By ~ 11

Author(s):

Ke Bi ◽

Dan Wang ◽

Peng Wang ◽

Bin Duan ◽

Tieqiang Zhang ◽

...

Keyword(s):

Quantum Dot ◽

White Light ◽

Light Emitting Diodes ◽

Light Emitting ◽

Warm White Light ◽

Color Rendering Index ◽

Halide Perovskite ◽

White Light Emitting Diodes ◽

Color Rendering ◽

Lead Halide

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Bright tricolor ultrabroad-band emission carbon dots for white light-emitting diodes with a 96.5 high color rendering index

Journal of Materials Chemistry C ◽

10.1039/c9tc06187h ◽

2020 ◽

Vol 8 (4) ◽

pp. 1286-1291 ◽

Cited By ~ 4

Author(s):

Xiaoxi Li ◽

Zifei Wang ◽

Yang Liu ◽

Weiguang Zhang ◽

Chaofeng Zhu ◽

...

Keyword(s):

White Light ◽

Carbon Dots ◽

Light Emitting Diodes ◽

Light Emitting ◽

Band Emission ◽

Color Rendering Index ◽

White Light Emitting Diodes ◽

Color Rendering

Synthesis of tricolor ultrabroad-band emissive CDs and luminescence films for WLEDs with high CRI and adjustable CCT.

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

International Journal of Photoenergy ◽

10.1155/2014/407239 ◽

2014 ◽

Vol 2014 ◽

pp. 1-6 ◽

Cited By ~ 5

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.

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