Results 21 to 30 of about 479 (170)
Wide-Angle Mini-Light-Emitting Diodes without Optical Lens for an Ultrathin Flexible Light Source
Micromachines, 2022 This report outlines a proposed method of packaging wide-angle (WA) mini-light-emitting diode (mini-LED) devices without optical lenses to create a highly efficient, ultrathin, flexible planar backlight for portable quantum dot light-emitting diode (QLED)
Yen-Lung Chen +6 more
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High efficiency green InP quantum dot light-emitting diodes by balancing electron and hole mobility
Communications Materials, 2021 Developing green-emitting InP quantum dot light-emitting diodes (QLED) is lagging behind their red and green counterparts. Here, green InP quantum dots are prepared and incorporated into a QLED so to promote hole transport and reduce electron mobility ...
Wei-Chih Chao +9 more
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Nanomaterials, 2020 In this study, we report on the application of a dielectric/ultra-thin metal/dielectric (DMD) multilayer consisting of ytterbium (Yb)-doped molybdenum oxide (MoO3)/silver (Ag)/MoO3 stacked as the transparent cathode in top-emitting green quantum dot ...
Chun-Yu Lee +6 more
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An electrical and infrared controllable color emission quantum dot light-emitting diode
AIP Advances, 2022 Infrared-to-visible upconversion (IVU) possesses a variety of applications, spanning from bio-imaging to anti-counterfeiting, and has attracted great attention.
Zun-Hong Jiang +2 more
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Nano-Micro Letters, 2022 ZnO nanoparticles are widely used for the electron transport layers (ETLs) of quantum dots light emitting devices (QLEDs). In this work we show that incorporating fluorine (F) into the ZnO ETL results in significant enhancement in device ...
Dong Seob Chung +5 more
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Flexible CdSe/ZnS Quantum-Dot Light-Emitting Diodes with Higher Efficiency than Rigid Devices
Micromachines, 2022 Fabrication of high-performance, flexible quantum-dot light-emitting diodes (QLEDs) requires the reliable manufacture of a flexible transparent electrode to replace the conventional brittle indium tin oxide (ITO) transparent electrode, along with ...
Mijin Kim +3 more
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Effect of Solvents of Quantum Dots on QLED Performance
IOP Conference Series: Materials Science and Engineering, 2019 Abstract The QLED that we are making now, in addition to the evaporation of the a layer, the other layers are generally obtained by solution spin-coating. In our experiments, the selection strategies for quantum dots and adjacent layers of solvents were summarized.
Min Yang +4 more
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Enhance the Light Extraction Efficiency of QLED with Surface Micro-Nanostructure [PDF]
Journal of Nanomaterials, 2020 Quantum dot light-emitting diodes (QLEDs) are usually a flat multilayer structure. The luminous efficiency of QLEDs is limited because the light extraction is constrained owing to the substrate mode at the air/substrate interface, the waveguide mode at the conductive glass/organic interface, and the surface plasmon polaritons (SPPs) along the metal ...
Zilei Liu +5 more
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Waveguide Coupled Full-Color Quantum Dot Light-Emitting Diodes Modulated by Microcavities
PhotonicsIntegrated light-emitting diodes (LEDs) with waveguides play an important role in applications such as augmented reality (AR) displays, particularly regarding coupling efficiency optimization.
Yilan Zhang +11 more
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Advances and Challenges in Heavy-Metal-Free InP Quantum Dot Light-Emitting Diodes
Micromachines, 2022 Light-emitting diodes based on colloidal quantum dots (QLEDs) show a good prospect in commercial application due to their narrow spectral linewidths, wide color range, excellent luminance efficiency, and long operating lifetime.
Xiaojie Jiang +3 more
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