High efficiency and high color purity blue-emitting NaSrBO3:Ce3+ phosphor for near-UV light-emitting diodes

2011 ◽  
Vol 21 (19) ◽  
pp. 6869 ◽  
Author(s):  
Wei-Ren Liu ◽  
Chien-Hao Huang ◽  
Chih-Pin Wu ◽  
Yi-Chen Chiu ◽  
Yao-Tsung Yeh ◽  
...  
Keyword(s):  
High Efficiency ◽  
Light Emitting Diodes ◽  
Uv Light ◽  
Color Purity ◽  
Light Emitting ◽  
High Color Purity

High-Color-Purity Red Phosphor for Near-UV Light-Emitting Diodes

2008 ◽  
Vol 155 (12) ◽  
pp. J375 ◽  
Author(s):  
Zhengliang Wang ◽  
Hongbin Liang ◽  
Qihua Zeng ◽  
Menglian Gong ◽  
Qiang Su
Keyword(s):  
Light Emitting Diodes ◽  
Uv Light ◽  
Color Purity ◽  
Red Phosphor ◽  
Light Emitting ◽  
High Color Purity

A novel germanate based red-emitting phosphor with high efficiency, high color purity and thermal stability for white light-emitting diodes and field emission displays

2020 ◽  
Vol 7 (4) ◽  
pp. 1034-1045 ◽  
Author(s):  
Qiang Zhang ◽  
Xicheng Wang ◽  
Yuhua Wang
Keyword(s):  
Field Emission ◽  
White Light ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Color Purity ◽  
Light Emitting ◽  
Field Emission Displays ◽  
White Light Emitting Diodes ◽  
High Color Purity ◽  
Red Emitting Phosphor

A series of Eu3+-activated K2SrGe8O18 phosphors for white light emitting diodes and field emission displays were developed and explored.

A potential red-emitting phosphor with high color-purity for near-UV light emitting diodes

2012 ◽  
Vol 12 (4) ◽  
pp. 1084-1087 ◽  
Author(s):  
Zhengliang Wang ◽  
Yaling Zhang ◽  
Li Xiong ◽  
Xiaofan Li ◽  
Junming Guo ◽  
...  
Keyword(s):  
Light Emitting Diodes ◽  
Uv Light ◽  
Color Purity ◽  
Light Emitting ◽  
High Color Purity ◽  
Red Emitting Phosphor

High performance red phosphorescent organic electroluminescent devices with characteristic mechanisms by utilizing terbium or gadolinium complexes as sensitizers

2017 ◽  
Vol 5 (8) ◽  
pp. 2066-2073 ◽  
Author(s):  
Rongzhen Cui ◽  
Weiqiang Liu ◽  
Liang Zhou ◽  
Xuesen Zhao ◽  
Yunlong Jiang ◽  
...  
Keyword(s):  
High Performance ◽  
Light Emitting Diodes ◽  
Organic Light Emitting Diodes ◽  
Color Purity ◽  
Electroluminescent Devices ◽  
Light Emitting ◽  
Organic Light ◽  
Gadolinium Complexes ◽  
Organic Electroluminescent ◽  
High Color Purity

High performance sensitized organic light-emitting diodes with high color purity were obtained by utilizing terbium or gadolinium complexes as sensitizers.

65‐3: Quantum Dot Light‐emitting Diodes with High Color Purity RGB Cadmium‐Free Quantum Dots

2021 ◽  
Vol 52 (1) ◽  
pp. 953-956
Author(s):  
Tatsuya Ryowa ◽  
Yusuke Sakakibara ◽  
Tadashi Kobashi ◽  
Keisuke Kitano ◽  
Masaya Ueda ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Quantum Dot ◽  
Light Emitting Diodes ◽  
Color Purity ◽  
Light Emitting ◽  
High Color Purity

Solution Processed Fabrication of Perovskite Light-Emitting Diodes: Towards Low Cost and Commercial Applications

2021 ◽  
Author(s):  
Jianfeng Zhang ◽  
Bin Wei ◽  
Lin Wang ◽  
Xuyong Yang
Keyword(s):  
Light Emitting Diodes ◽  
Low Cost ◽  
Color Purity ◽  
Color Gamut ◽  
Light Emitting ◽  
Metal Halide Perovskite ◽  
Wide Color Gamut ◽  
Halide Perovskite ◽  
Commercial Applications ◽  
High Color Purity

Metal halide perovskite light-emitting diodes (PeLEDs) have emerged as one of the most promising candidates for next-generation high-resolution displays, due to their wide color gamut, high color purity and low-cost...

High-efficiency near-UV light-emitting diodes on Si substrates with InGaN/GaN/AlGaN/GaN multiple quantum wells

2020 ◽  
Vol 8 (3) ◽  
pp. 883-888 ◽  
Author(s):  
Yuan Li ◽  
Zhiheng Xing ◽  
Yulin Zheng ◽  
Xin Tang ◽  
Wentong Xie ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Quantum Efficiency ◽  
High Efficiency ◽  
Light Emitting Diodes ◽  
Uv Light ◽  
Multiple Quantum ◽  
High Quantum Efficiency ◽  
Light Emitting ◽  
Si Substrates

High quantum efficiency LEDs with InGaN/GaN/AlGaN/GaN MQWs have been demonstrated. The proposed GaN interlayer barrier can not only increase the concentration and the spatial overlap of carriers, but also improve the quality of the MQWs.

scholarly journals Structural and spectral dynamics of single-crystalline Ruddlesden-Popper phase halide perovskite blue light-emitting diodes

2020 ◽  
Vol 6 (4) ◽  
pp. eaay4045 ◽  
Author(s):  
Hong Chen ◽  
Jia Lin ◽  
Joohoon Kang ◽  
Qiao Kong ◽  
Dylan Lu ◽  
...  
Keyword(s):  
Density Functional ◽  
Light Emitting Diodes ◽  
Degradation Mechanism ◽  
Density Functional Theory Calculation ◽  
Underlying Mechanism ◽  
Color Purity ◽  
Spectral Evolution ◽  
Heat Management ◽  
Light Emitting ◽  
High Color Purity

Achieving perovskite-based high–color purity blue-emitting light-emitting diodes (LEDs) is still challenging. Here, we report successful synthesis of a series of blue-emissive two-dimensional Ruddlesden-Popper phase single crystals and their high–color purity blue-emitting LED demonstrations. Although this approach successfully achieves a series of bandgap emissions based on the different layer thicknesses, it still suffers from a conventional temperature-induced device degradation mechanism during high-voltage operations. To understand the underlying mechanism, we further elucidate temperature-induced device degradation by investigating the crystal structural and spectral evolution dynamics via in situ temperature-dependent single-crystal x-ray diffraction, photoluminescence (PL) characterization, and density functional theory calculation. The PL peak becomes asymmetrically broadened with a marked intensity decay, as temperature increases owing to [PbBr6]4− octahedra tilting and the organic chain disordering, which results in bandgap decrease. This study indicates that careful heat management under LED operation is a key factor to maintain the sharp and intense emission.

Blue-Emitting K2Al2B2O7:Eu2+ Phosphor with High Thermal Stability and High Color Purity for Near-UV-Pumped White Light-Emitting Diodes

2015 ◽  
Vol 54 (7) ◽  
pp. 3189-3195 ◽  
Author(s):  
Wenge Xiao ◽  
Xia Zhang ◽  
Zhendong Hao ◽  
Guo-Hui Pan ◽  
Yongshi Luo ◽  
...  
Keyword(s):  
Thermal Stability ◽  
White Light ◽  
Light Emitting Diodes ◽  
High Thermal Stability ◽  
Color Purity ◽  
Light Emitting ◽  
White Light Emitting Diodes ◽  
High Color Purity
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