Results 71 to 80 of about 3,731,531 (363)

Generation of High-Order Bessel Orbital Angular Momentum Vortex Beam Using a Single-Layer Reflective Metasurface

IEEE Access, 2020
In this paper, we propose a method to generate a high-order Bessel orbital angular momentum (OAM) vortex beam by using a single-layer reflective metasurface, which integrates the advantages of small size, high efficiency, insensitive polarization and ...
Haixia Liu, Hao Xue, Yongjie Liu, Qiang Feng, Long Li   +4 more
doaj   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

Advanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein, Tiago Carneiro Gomes, Eliza Ng, Simon Rondeau‐Gagné, Tricia Breen Carmichael   +4 more
wiley   +1 more source

A Low-Noise MEMS Accelerometer Based on a Symmetrical Sandwich Capacitor Structure

Micromachines
This study presents a high-performance MEMS accelerometer employing a symmetrical differential ‘sandwich’ capacitive structure. An orthogonal rectangular compensation method was integrated with wet anisotropic etching to achieve high structural symmetry.
Zihan Wang, Chaowei Si, Jihua Zhang, Zhen Fang, Jinxu Liu, Shuqi Li, Wanli Zhang   +6 more
doaj   +1 more source

Multi-method Fusion of Cross-Subject Emotion Recognition Based on High-Dimensional EEG Features

Frontiers in Computational Neuroscience, 2019
Emotion recognition using electroencephalogram (EEG) signals has attracted significant research attention. However, it is difficult to improve the emotional recognition effect across subjects.
Fu Yang, Fu Yang, Xingcong Zhao, Xingcong Zhao, Wenge Jiang, Wenge Jiang, Pengfei Gao, Pengfei Gao, Guangyuan Liu, Guangyuan Liu   +9 more
doaj   +1 more source

Cryo‐EM of Rationally Designed Photosystem I Nanoassembly on Graphene Validates Orientation‐Driven Enhancement of Photocatalytic Performance

Advanced Functional Materials, EarlyView.
The first cryo‐EM visualization and quantification of oriented Photosystem I (PSI) on single‐layer graphene is reported. Domain‐specific covalent anchoring of PSI, with the reducing side of the biophotocatalyst toward graphene, promotes three‐fold higher anodic photocurrent generation compared to a randomly physisorbed counterpart. This approach allows
Miriam Izzo, Margot Jacquet, Tomasz Góral, Marcin Strawski, Takayuki Fujiwara, Shin‐ya Miyagishima, Joanna Kargul   +6 more
wiley   +1 more source

Positive‐Tone Nanolithography of Antimony Trisulfide with Femtosecond Laser Wet‐Etching

Advanced Functional Materials, EarlyView.
A butyldithiocarbamic acid (BDCA) etchant is used to fabricate various micro‐ and nanoscale structures on amorphous antimony trisulfide (a‐Sb2S3) thin film via femtosecond laser etching. Numerical analysis and experimental results elucidate the patterning mechanism on gold (reflective) and quartz (transmissive) substrates.
Abhrodeep Dey, Uwe Hübner, Albane Benardais, Xiaofei Wu, Andrea Dellith, Jan Dellith, Torsten Wieduwilt, Henrik Schneidewind, Markus A Schmidt, Virginie Nazabal, Volker Deckert, Jer‐Shing Huang, Wei Wang   +12 more
wiley   +1 more source

Applications of lasers: A promising route toward low-cost fabrication of high-efficiency full-color micro-LED displays

Opto-Electronic Science
Micro-light-emitting diodes (micro-LEDs) with outstanding performance are promising candidates for next-generation displays. To achieve the application of high-resolution displays such as meta-displays, virtual reality, and wearable electronics, the size
Shouqiang Lai, Shibiao Liu, Zilu Li, Zhening Zhang, Zhong Chen, Rong Zhang, Hao-Chung Kuo, Tingzhu Wu   +7 more
doaj   +1 more source

Electroactive Metal–Organic Frameworks for Electrocatalysis

Advanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska, Yutong Luo, Ruyan Zhao, Jianjun Zhang, Mingchao Wang, Xinliang Feng, Eike Brunner, Stefan Kaskel   +7 more
wiley   +1 more source

Thermal Management Technologies for Improving the Thermal Stability of Perovskite Solar Cells

Nano-Micro Letters
Highlights Joule heating is the dominant cause of elevated device temperature in perovskite solar cells (PSCs) under operation, significantly degrades their long-term thermal stability.
Zhongquan Wan, Runmin Wei, Haibin Zhao, Wang Yu, Muhammad Azam, Junsheng Luo, Chunyang Jia   +6 more
doaj   +1 more source

Reconfigurable EIT Metasurface with Low Excited Conductivity of VO₂

Photonics
The active materials-loaded reconfigurable metasurface is a potential platform for terahertz (THz) communication systems. However, the requirements of the modulation performance and the modulation rate put forward the opposite requirements on the excited
Ruijie Li, Qiang Feng, Gaomou Lei, Qifan Li, Haixia Liu, Peng Xu, Jiaqi Han, Yan Shi, Long Li   +8 more
doaj   +1 more source