Results 71 to 80 of about 3,807,058 (336)

Deciphering the Photopolymerization‐Induced Nanostructures and Interface Formation for Submicrometer Additive Manufacturing

Advanced Functional Materials, EarlyView.
This work reveals the UV‐curing‐induced monomer‐rich domain, oligomer‐rich domain, and entangled oligomer domain. The cured submicron films in stressed state induce interlayer nano‐wrinkle structures during the deposition of the second layer. Stress‐free cured films in relaxed state form non‐diffusive, diffusive and semi‐diffusive interlayer ...
Shouzheng Chen, Yufeng Zhai, Jungui Zhou, Lixing Li, Simon Schraad, Guangjiu Pan, Xuehe Jiang, Sarathlal Koyiloth Vayalil, Rolf A. T. M. van Benthem, Julien R. G. Navarro, Johan F. G. A. Jansen, Mats K. G. Johansson, Peter Müller‐Buschbaum, Stephan V. Roth   +13 more
wiley   +1 more source

Tailoring of Energy Band in Electron-Blocking Structure Enhancing the Efficiency of AlGaN-Based Deep Ultraviolet Light-Emitting Diodes

IEEE Photonics Journal, 2016
Electron-leakage is a deep-rooted problem for nitride-based light-emitting diodes (LEDs), particularly for AlGaN-based deep-ultraviolet (DUV) LEDs. In this paper, a specific design for the electron-blocking structure in AlGaN DUV LEDs, increasing the Al ...
Xiaoli Ji, Jianchang Yan, Yanan Guo, Lili Sun, Tongbo Wei, Yun Zhang, Junxi Wang, Fuhua Yang, Jinmin Li   +8 more
doaj   +1 more source

Closing the yellow gap with Eu- and Tb-doped GaN: one luminescent host resulting in three colours

Scientific Reports, 2022
Gallium nitride (GaN) is a key material when it comes to light-emitting diodes (LEDs) and has pushed the LED revolution in lighting and displays.
Cordula Braun, Liuda Mereacre, Zheng Chen, Adam Slabon   +3 more
doaj   +1 more source

Suppressing phase disproportionation in quasi-2D perovskite light-emitting diodes

Nature Communications, 2023
Quasi-2D halide perovskites are attracting increasing attention for light-emitting devices. Here, the authors demonstrated efficient and stable quasi-2D perovskite LEDs enabled by suppressed phase disproportionation with newly designed organic ligands ...
Kan Wang, Zih-Yu Lin, Zihan Zhang, Linrui Jin, Ke Ma, Aidan H. Coffey, H. Atapattu, Yao Gao, Jee Yung Park, Zi-Tang Wei, Blake P. Finkenauer, C. Zhu, Xian-Geng Meng, S. Chowdhury, Zhaoyang Chen, Tanguy Terlier, T. Do, Yan Yao, K. Graham, A. Boltasseva, Tzung-Fang Guo, Libai Huang, Hanwei Gao, B. Savoie, L. Dou   +24 more
semanticscholar   +1 more source

Wavelength-Multiplexed Polymer LEDs: Towards 55 Mb/s Organic Visible Light Communications [PDF]

, 2015
We present recent progress on visible light communication systems using polymer light-emitting diodes as the transmitters and a commercial silicon photodetector as the receiver.
Papakonstantinou, I, Bausi, Francesco, Haigh, PA, Cacialli, Franco, Haigh, Paul Anthony, Le Minh, H, Burton, A, Cacialli, F, Popoola, Wasiu Oyewole, Bausi, F, Papakonstantinou, Ioannis, Popoola, Wasiu O., Burton, Andrew, Haigh, Paul, Le Minh, Hoa, Popoola, WO   +15 more
core   +1 more source

Sub‐1 ms Optoelectronic Synapse Based on {ZnCdO/ZnO} Multilayer Structure for High‐Speed Neuromorphic Vision Systems

Advanced Functional Materials, EarlyView.
Eu‐doped {ZnCdO/ZnO} structures grown on Si are developed, showcasing dual‐functionality controlled by europium doping. While high europium concentration transforms the device into an ultrafast, self‐powered photodetector, low‐doped structures can be used as an optoelectronic synapse.
Igor Perlikowski, Eunika Zielony, Adrian Kaim, Ewa Przeździecka   +3 more
wiley   +1 more source

Circularly Polarized Electroluminescence and Spin‐Polarized Carrier Transport in Chiral‐Doped Polymer Films

Advanced Functional Materials, EarlyView.
Chiral dopants induce supramolecular chirality in an achiral polymer (PFO), generating spin‐polarized carriers via the chiral‐induced spin selectivity (CISS) and suggesting a possible contribution of Spin‐polarized carrier transport to circularly polarized electroluminescence (CPEL).
Kazuyuki Asahi, Masashi Hasegawa, Yuuya Nagata, Tamaki Nakano, Hiroyuki Nishikawa   +4 more
wiley   +1 more source

Light‐Emitting Diodes Based on Metal Halide Perovskite and Perovskite Related Nanocrystals [PDF]

Advances in Materials
Light‐emitting diodes (LEDs) based on halide perovskite nanocrystals have attracted extensive attention due to their considerable luminescence efficiency, wide color gamut, high color purity, and facile material synthesis.
Ying Liu, Zhuang-Zhuang Ma, Ji-Bin Zhang, Yan-Ni He, Jin-Fei Dai, Xin-Jian Li, Zhi-Feng Shi, L. Manna   +7 more
semanticscholar   +1 more source

Out‐of‐Plane Strain‐Decoupled Architecture for High‐Fill‐Factor Stretchable OLED Displays

Advanced Functional Materials, EarlyView.
A vertically decoupled multilayer SOLED architecture separates emissive pixel islands from deformable interconnects, allowing low‐modulus elastomeric layers to accommodate applied strain and suppress strain transfer to the OLED region. This design, combined with transparent hybrid encapsulation, enables a high fill factor (∼75%), stretchability ...
Young Hyun Son, Kyung Cheol Choi, Jeong Hyun Kwon   +2 more
wiley   +1 more source

p‐Graphene/Quantum Dot/n‐GaAs Mixed‐Dimensional Heterostructure Junction for Ultrathin Light‐Emitting‐Diodes

Advanced Materials Interfaces
2D materials such as graphene hold significant potential for optoelectronic applications due to their unique surface properties and strong light‐matter interaction. Despite the promise, achieving high‐performance photonic devices using 2D materials alone
Quang Nhat Dang Lung, Rafael Jumar Chu, Eungbeom Yeon, Yeonhwa Kim, May Angelu Madarang, Won Jun Choi, Daehwan Jung   +6 more
doaj   +1 more source