Solid-State Carbon Dots-Based White Light-Emitting Diodes With Ultrahigh Color Rendering Index and Good Thermal Stability

2021 ◽  
pp. 1-6
Author(s):  
Luqiao Yin ◽  
Yuxian Yan ◽  
Huazhang Guo ◽  
Liang Wang ◽  
Huixin Xiu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Solid State ◽  
White Light ◽  
Carbon Dots ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Good Thermal Stability ◽  
Color Rendering Index ◽  
White Light Emitting Diodes ◽  
Color Rendering

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.

scholarly journals High Stability Carbon Dots Phosphor and Ultra-High Color Rendering Index White Light-Emitting Diodes

2021 ◽  
pp. 1-1
Author(s):  
Yuxian Yan ◽  
Luqiao Yin ◽  
Huazhang Guo ◽  
Liang Wang ◽  
Jianhua Zhang
Keyword(s):  
White Light ◽  
Carbon Dots ◽  
High Stability ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Color Rendering Index ◽  
White Light Emitting Diodes ◽  
Color Rendering

High color rendering index white light emitting diodes fabricated from a combination of carbon dots and zinc copper indium sulfide quantum dots

2014 ◽  
Vol 104 (26) ◽  
pp. 261106 ◽  
Author(s):  
Chun Sun ◽  
Yu Zhang ◽  
Yu Wang ◽  
Wenyan Liu ◽  
Sergii Kalytchuk ◽  
...  
Keyword(s):  
Quantum Dots ◽  
White Light ◽  
Carbon Dots ◽  
Light Emitting Diodes ◽  
Indium Sulfide ◽  
Light Emitting ◽  
Copper Indium ◽  
Color Rendering Index ◽  
White Light Emitting Diodes ◽  
Color Rendering

The thermal stability performances of the color rendering index of white light emitting diodes with the red quantum dots encapsulation

2015 ◽  
Vol 42 ◽  
pp. 187-192 ◽  
Author(s):  
Luqiao Yin ◽  
Yang Bai ◽  
Jie Zhou ◽  
Jin Cao ◽  
Xiaowei Sun ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Quantum Dots ◽  
White Light ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Color Rendering Index ◽  
White Light Emitting Diodes ◽  
Color Rendering

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.

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

2020 ◽  
Vol 8 (4) ◽  
pp. 1286-1291 ◽  
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.

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.

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

2020 ◽  
Vol 8 (15) ◽  
pp. 2000251 ◽  
Author(s):  
Xiaoqin Zhang ◽  
Haiyao Yang ◽  
Zhijun Wan ◽  
Ting Su ◽  
Xuejie Zhang ◽  
...  
Keyword(s):  
White Light ◽  
Carbon Dots ◽  
High Stability ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Warm White Light ◽  
Color Rendering Index ◽  
White Light Emitting Diodes ◽  
Color Rendering

Red carbon dots-based phosphors for white light-emitting diodes with color rendering index of 92

2018 ◽  
Vol 528 ◽  
pp. 281-288 ◽  
Author(s):  
Yuechen Zhai ◽  
Yi Wang ◽  
Di Li ◽  
Ding Zhou ◽  
Pengtao Jing ◽  
...  
Keyword(s):  
White Light ◽  
Carbon Dots ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Color Rendering Index ◽  
White Light Emitting Diodes ◽  
Color Rendering
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