Results 61 to 70 of about 104,021 (275)

Atomic Layer Deposition in Transistors and Monolithic 3D Integration

Advanced Functional Materials, EarlyView.
Transistors are fundamental building blocks of modern electronics. This review summarizes recent progress in atomic layer deposition (ALD) for the synthesis of two‐dimensional (2D) metal oxides and transition‐metal dichalcogenides (TMDCs), with particular emphasis on their enabling role in monolithic three‐dimensional (M3D) integration for next ...
Yue Liu, Taoyu Zou, Cheng‐Yan Xu, Liang Zhen, Yang Li, Yong‐Young Noh   +5 more
wiley   +1 more source

Adaptive Modulation Scheme for Soft-Switching Hybrid FSO/RF Links Based on Machine Learning

Photonics
A hybrid free-space optical (FSO) and radio frequency (RF) communication system has been considered an effective way to obtain a good trade-off between spectrum utilization efficiency and high-rate transmission.
Junhu Shao, Yishuo Liu, Xuxiao Du, Tianjiao Xie   +3 more
doaj   +1 more source

3D‐Printed Hygroscopic Polymer Networks for High‐Humidity Triboelectric Nanogenerators to Wirelessly Power Implantable Electronic Devices‐ A Conceptual Pathway

Advanced Functional Materials, EarlyView.
This work develops 3D‐printable tribopolymer networks that can enhance triboelectric performance under high humidity environments. Polar hydrophilic functional groups and incorporation of zwitterionic monomers promote bound‐water–dominated interfacial polarization thereby increasing electrical outputs.
Linguangze Zhuo, Jiawang Zeng, Qian Chen, Valentin A. Bobrin, Deepak Mishra, Anthony Chun Yin Yuen, Yixia Zhang, Cyrille Boyer, Jin Zhang   +8 more
wiley   +1 more source

Performance Analysis of Troposphere Scattering Communication Channel with Chirp-BOK Modulation

Entropy
By utilizing chirp-BOK (binary orthogonal keying) modulation into a troposphere scattering communication system, a lower demodulation threshold can be achieved with excellent linear frequency modulation properties in a strong noise and weak signal ...
Junhu Shao, Zaiping Liu, Yishuo Liu, Tianjiao Xie   +3 more
doaj   +1 more source

Laser radio transmitter

, 2019
Since the days of Hertz, radio transmitters have evolved from rudimentary circuits emitting around 50 MHz to modern ubiquitous Wi-Fi devices operating at gigahertz radio bands.
Belyanin, Alexey, Capasso, Federico, Chevalier, Paul, Connors, Michael K., McNulty, Daniel, Piccardo, Marco, Rubin, Noah A., Schwarz, Benedikt, Tamagnone, Michele, Wang, Christine A., Wang, Yongrui   +10 more
core   +2 more sources

Design Strategies and Emerging Applications of High‐Performance Flexible Piezoresistive Pressure Sensors

Advanced Functional Materials, EarlyView.
Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo, Artur Ciesielski, Paolo Samorì   +2 more
wiley   +1 more source

RCS reduction of wide-band, high-gain antenna array based on asymmetric transmission metasurfaces

Scientific Reports
In this paper, an ultra-wideband stealth antenna with high gain on the basis of asymmetric transmission metasurface (ATMS) is proposed. ATMS can convert an incident y-polarised sphere wave into an x-polarised plane wave at the front side and controls the
Ting Wu, Lei Yan, Zikang Zhang
doaj   +1 more source

Integrated transceivers for optical wireless communications

IEEE Journal of Selected Topics in Quantum Electronics, 2005
Line-of-sight free-space optical links can provide extremely high bandwidth communications, but this usually requires that transmitter and receiver are precisely aligned. In order to allow terminals to be mobile, links must be able to track users within their field of view so that the link is maintained.
O'Brien, D, Faulkner, G, Zyambo, E, Jim, K, Edwards, D, Stavrinou, P, Parry, G, Bellon, J, Sibley, M, Lalithambika, V, Joyner, V, Samsudin, R, Holburn, D, Mears, R   +13 more
openaire   +1 more source

Transfer Printing and Reconfiguration of Soft Electronics Using Digital Microfluidics and Laser Machining

Advanced Functional Materials, EarlyView.
This paper presents a digital microfluidics‐based technique for transferring and reconfiguring soft nanomembranes. Laser‐machined nanothin membranes are picked up, transported, and aligned via tailored surface tension and the actuation of water droplets, enabling the development of flexible electronics, the integration of functional materials on 3D ...
Quang Anh Nguyen, Chi Cong Nguyen, Tran Bach Dang, Phuoc Thien Phan, Jordan Thorpe, Michael Listyawan, Nhat Minh Doan, Sinuo Zhao, Hongru Chen, Trung Thien Hoang, Mingsheng Xu, Jisheng Han, Thanh Nho Do, Adam Hill, Timothée Mouterde, Hoang‐Phuong Phan   +15 more
wiley   +1 more source

MAC Protocol in Wireless Body Area Network for Mobile Health: A Survey and an Architecture Design

International Journal of Distributed Sensor Networks, 2015
Wireless body area networks (WBANs) have become a leading solution in mobile health (mHealth). Typically, a WBAN consists of in-body or around-body sensor nodes for collecting data of physiological feature.
Xin Qi, Kun Wang, AnPeng Huang, Haifeng Hu, Guangjie Han   +4 more
doaj   +1 more source