Bright and efficient light-emitting diodes based on MA/Cs double cation perovskite nanocrystals

2017 ◽  
Vol 5 (25) ◽  
pp. 6123-6128 ◽  
Author(s):  
Bing Xu ◽  
Weigao Wang ◽  
Xiaoli Zhang ◽  
Wanyu Cao ◽  
Dan Wu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Yield ◽  
Band Gap ◽  
Light Emitting Diodes ◽  
Color Purity ◽  
High Quantum Yield ◽  
Light Emitting ◽  
Perovskite Nanocrystals ◽  
High Color Purity ◽  
Tunable Band Gap

A high quantum yield, tunable band gap, and high color purity of perovskite nanocrystals make this class of materials attractive for electronic and optoelectronic applications in devices including solar cells, photodetectors, and light emitting diodes.

scholarly journals High-quality CsPbBr3 perovskite nanocrystals for quantum dot light-emitting diodes

RSC Advances ◽  
2017 ◽  
Vol 7 (17) ◽  
pp. 10391-10396 ◽  
Author(s):  
Xiafang Du ◽  
Guan Wu ◽  
Jian Cheng ◽  
Hui Dang ◽  
Kangzhe Ma ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Quantum Dot ◽  
Light Emitting Diodes ◽  
Light Emitting Diode ◽  
Color Purity ◽  
High Quantum Yield ◽  
High Quality ◽  
Light Emitting ◽  
Perovskite Nanocrystals ◽  
High Quantum

We synthesized luminescent CsPbBr3 nanocrystals with a high quantum yield and realized patterning and color-purity light-emitting diode applications.

scholarly journals Tunable CsPb(Br/Cl)3 perovskite nanocrystals and further advancement in designing light emitting fiber membranes

2021 ◽  
Vol 2 (8) ◽  
pp. 2700-2710
Author(s):  
Sk Shamim Hasan Abir ◽  
Santosh K. Gupta ◽  
A. Ibrahim ◽  
Bhupendra B. Srivastava ◽  
Karen Lozano
Keyword(s):  
Quantum Yield ◽  
Color Purity ◽  
Light Emitting ◽  
Perovskite Nanocrystals ◽  
Fiber Membranes ◽  
High Color Purity

Design of blue and green emitting CsPb(Cl/Br)3 and their further exploration to develop light emitting fibers with enhanced quantum yield and high color purity.

Superior Stable and High Quantum Yield Phosphor Na2BaSr(PO4)2: Eu2+ for Plant Growth LEDs

2021 ◽  
Author(s):  
Jinmeng Xiang ◽  
Xiaoqi Zhao ◽  
Hao Suo ◽  
Minkun Jin ◽  
Xue Zhou ◽  
...  
Keyword(s):  
Quantum Yield ◽  
Plant Growth ◽  
Light Emitting Diodes ◽  
Light Environment ◽  
High Quantum Yield ◽  
Light Emitting ◽  
Growth Rhythm ◽  
High Quantum ◽  
Violet Light ◽  
Important Means

Controlling the light environment of plant growth using phosphor-converted light-emitting diodes (pc-LEDs) is an important means to regulate the growth rhythm and enhance the yield, in which bluish violet light...

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...

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.

Multicolor tunable highly luminescent carbon dots for remote force measurement and white light emitting diodes

2019 ◽  
Vol 55 (81) ◽  
pp. 12164-12167 ◽  
Author(s):  
Ya Liu ◽  
Miaoran Zhang ◽  
Yanfen Wu ◽  
Rui Zhang ◽  
Yi Cao ◽  
...  
Keyword(s):  
Quantum Yield ◽  
White Light ◽  
Carbon Dots ◽  
Light Emitting Diodes ◽  
Solvothermal Method ◽  
Force Measurement ◽  
High Quantum Yield ◽  
Light Emitting ◽  
One Step ◽  
White Light Emitting Diodes

A one-step solvothermal method was exploited to synthesize blue, yellow and red carbon dots with high quantum yield by altering the corresponding reaction solvent.

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