Results 31 to 40 of about 479 (170)
On the degradation mechanisms of quantum-dot light-emitting diodes
Nature Communications, 2019 Wide application of quantum dot light emitting diodes (QLED) in display technology is hindered by the poor lifetime of the blue QLEDs. Here, the degradation mechanism is shown to originate from space charge accumulation in the electron-transporting layer
Song Chen +6 more
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All-Inorganic Red-Light Emitting Diodes Based on Silicon Quantum Dots
Crystals, 2019 We report herein an all-inorganic quantum dot light emitting diode (QLED) where an optically active layer of crystalline silicon (Si) is mounted. The prototype Si-QLED has an inverted device architecture of ITO/ZnO/QD/WO3/Al multilayer, which was ...
Batu Ghosh, Naoto Shirahata
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Nanomaterials, 2023 This paper presents a study that aims to enhance the performance of quantum dot light-emitting didoes (QLEDs) by employing a solution-processed molybdenum oxide (MoOx) nanoparticle (NP) as a hole injection layer (HIL).
Ji-Hun Yang +6 more
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Nano ResearchAlthough quantum-dot light-emitting diodes (QLEDs) can exhibit high efficiency and long lifetime, the realization of QLEDs-based displays remains challenging due to their complex multilayer architectures and the use of unstable poly(3,4 ...
Heng Zhang +4 more
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Bromide Decorated Eco‐Friendly ZnSeTe/ZnSe/ZnS Quantum Dots for Efficient Blue Light‐Emitting Diodes
Advanced Materials Interfaces, 2023 Multi‐shelled ZnSeTe/ZnSe/ZnS quantum dots (QDs) have served as a promising eco‐friendly emitter for blue quantum dot light‐emitting diodes (QLEDs). While extensive studies have concentrated on the optimization of the shell species and thickness of the ...
Zhishuai Zheng +8 more
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Scientific Reports, 2023 AbstractThe aerobic and thermal stability of quantum-dot light-emitting diodes (QLEDs) is an important factor for the practical applications of these devices under harsh environmental conditions. We demonstrate all-solution-processed amber QLEDs with an external quantum efficiency (EQE) of > 14% with almost negligible efficiency roll-off (droop) and
Saeedeh Mokarian Zanjani +3 more
openaire +4 more sources
Recent progress and challenges in top‐emitting quantum dot light‐emitting diodes
FlexMat, EarlyView.This review summarizes recent advances in top‐emitting quantum‐dot light‐emitting diodes (TE‐QLEDs), including device architectures, microcavity engineering, angular‐emission management, and operational stability, highlighting optical–electrical–thermal co‐optimization as the key pathway toward reliable, high‐performance TE‐QLEDs. Abstract Top‐emitting
Chengyi Chen +6 more
wiley +1 more source
Tin‐based perovskite light‐emitting diodes: Progress and perspective
InfoScience, EarlyView.This review assesses tin‐based perovskite light‐emitting diodes (PeLEDs), focusing on the limitations of Sn2+ oxidation–induced defects and uncontrolled crystallization. By evaluating advanced device engineering and structural innovations, this article highlights their viability in narrowband pure‐red displays and near‐infrared optical communication ...
Wenhao Bai +7 more
wiley +1 more source
Opto-Electronic ScienceQuantum dot-based up-conversion photodetector, in which an infrared photodiode (PD) and a quantum dot light-emitting diode (QLED) are back-to-back connected, is a promising candidate for low-cost infrared imaging.
Jiao Jiao Liu +5 more
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MXenes in Next‐Generation Light‐Emitting Diodes: Innovations, Challenges, and Future Prospects
Laser &Photonics Reviews, EarlyView.This review provides a systematic and critical overview of MXene integration in LEDs from their synthesis strategies and electronic characteristics to their roles as electrodes, interlayers, and emissive materials. It also explores the emerging prospects and challenges for MXene‐enabled flexible, transparent, and intelligent display technologies that ...
Awais Ali +9 more
wiley +1 more source