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Single walled carbon nanotubes (SWNT) have displayed a wealth of quantum transport phenomena thus far. Defect free, unperturbed SWNTs with wellbehaved or tunable metal contacts are important to probing the intrinsic electrical properties of…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 Jien Cao , Qian Wang , Hongjie Dai

This paper presents an analytical design of an ultrasonic power transfer system based on piezoelectric micro-machined ultrasonic transducer (PMUT) for fully wireless brain implants in mice. The key steps like the material selection of each…

Medical Physics · Physics 2021-01-13 Fernanda Narvaez , Seyedsina Hosseini , Hooman Farkhani , Farshad Moradi

We perform systematic numerical simulations for carbon nanotube (CNT) film microstrip antennas to fabricate flexible and durable applications in terms of various device design parameters. The selection of appropriate materials for…

Applied Physics · Physics 2022-06-22 HeeBong Yang , Aaron Gross , Na Young Kim

We perform first-principles calculations to investigate the structural and electronic properties of metal-doped (10, 0) carbon nanotubes (CNTs) on a single hexagonal boron nitride (hBN) sheet in the presence of an external electric field.…

Mesoscale and Nanoscale Physics · Physics 2015-07-22 Seoung-Hun Kang , Gunn Kim , Young-Kyun Kwon

Silicon oxide (SiOx) has been widely used in many electronic systems as a supportive and insulating medium. Here we demonstrate various electrical phenomena such as negative differential resistance, resistive switching and current…

Materials Science · Physics 2011-02-17 Jun Yao , Lin Zhong , Douglas Natelson , James M. Tour

Silicon carbide (SiC) is an important semiconductor material for fabricating power electronic devices that exhibit higher switch frequency, lower energy loss and substantial reduction both in size and weight in comparison with its Si-based…

Materials Science · Physics 2023-04-19 Guobin Wang , Da Sheng , Yunfan Yang , Hui Li , Congcong Chai , Zhenkai Xie , Wenjun Wang , Jian-gang Guo , Xiaolong Chen

The quality of quantum bits (qubits) in silicon is highly vulnerable to charge noise that is omni-present in semiconductor devices and is in principle hard to be suppressed. For a realistically sized quantum dot system based on a…

Quantum Physics · Physics 2022-09-13 Hoon Ryu , Ji-Hoon Kang

Photonic ultrasound sensors offer unparalleled potential for improving spatial and temporal resolution in ultrasound imaging applications due to their size-independent noise figure, high sensitivity, and broad bandwidth characteristics. The…

A complex quantum dot circuit based on a clean and suspended carbon nanotube embedded in a circuit quantum electrodynamique (cQED) architecture is a very attractive platform to investigate a large spectrum of physics phenomena ranging from…

Mesoscale and Nanoscale Physics · Physics 2020-10-28 T. Cubaynes , L. C. Contamin , M. C. Dartiailh , M. M. Desjardins , A. Cottet , M. R. Delbecq , T. Kontos

Carbon nanotube field-effect transistors (CNFETs) are promising candidates for building energy-efficient digital systems at highly-scaled technology nodes. However, carbon nanotubes (CNTs) are inherently subject to variations that reduce…

Emerging Technologies · Computer Science 2016-11-17 Gage Hills , Jie Zhang , Max Marcel Shulaker , Hai Wei , Chi-Shuen Lee , Arjun Balasingam , H. -S. Philip Wong , Subhasish Mitra

At present, the most common type of cathode materials, NCA [Li_(1-x)Ni_(0.80)Co_(0.15)Al_(0.05)O_(2), x = 0 to 1], have a very high concentration of cobalt. Since cobalt is toxic and expensive, the existing design of cathode materials is…

Materials Science · Physics 2018-08-17 Kamalika Ghatak , Swastik Basu , Tridip Das , Hemant Kumar , Dibakar Datta

Hexagonal boron nitride is widely used as a substrate for two-dimensional materials in both electronic and photonic devices. Here, we demonstrate that two-dimensional hexagonal boron nitride is also an ideal substrate for one-dimensional…

Mesoscale and Nanoscale Physics · Physics 2021-01-01 N. Fang , K. Otsuka , A. Ishii , T. Taniguchi , K. Watanabe , K. Nagashio , Y. K. Kato

The performance of carbon nanotube (CNT) cables, a contender for copper-wire replacement, is tied to its metallic and semi-conducting-like conductivity responses with temperature; the origin of the semi-conducting-like response however is…

The inability to synthesize single-wall carbon nanotubes (SWCNTs) possessing uniform electronic properties and chirality represents the major impediment to their widespread applications. Recently, there is growing interest to explore and…

The Cooper-pair transistor (CPT), a small superconducting island enclosed between two Josephson weak links, is the atomic building block of various superconducting quantum circuits. Utilizing gate-tunable semiconductor channels as weak…

Mesoscale and Nanoscale Physics · Physics 2020-03-05 Alex Proutski , Dominique Laroche , Bas van 't Hooft , Peter Krogstrup , Jesper Nygård , Leo P. Kouwenhoven , Attila Geresdi

Silicon is one of the most promising anode materials for Lithium-ion batteries. Silicon endures volume changes upon cycling, which leads to subsequent pulverization and capacity fading. These drawbacks lead to a poor lifespan and hamper the…

Materials Science · Physics 2022-12-23 Mariam Ezzedine , Fatme Jardali , Ileana Florea , Mihai-robert Zamfir , Costel-sorin Cojocaru

As the conventional silicon metal-oxide-semiconductor field-effect transistor (MOSFET) approaches its scaling limits; many novel device structures are being extensively explored. Among them, the silicon nanowire transistor (SNWT) has…

Emerging Technologies · Computer Science 2014-07-10 Mayank Chakraverty

We study by numerical simulation in two and three dimensions the coupling layer between the transducer and the microfluidic chip in ultrasound acoustofluidic devices. The model includes the transducer with electrodes, the microfluidic chip…

Fluid Dynamics · Physics 2021-07-30 William Naundrup Bodé , Henrik Bruus

Capacitive Micromachined Ultrasonic Transducer (CMUT) has a wild range of applications in medical detecting and imaging fields. However, operating under self-generating-self-receiving (SGSR) method usually results in poor sensitivity. But…

Signal Processing · Electrical Eng. & Systems 2024-07-15 Yifan Wang , Yunfei Liu

Carrier selective (CS) silicon solar cells are increasingly explored using a variety of different materials. However, the optimum properties of such CS materials are not well understood. In this context, through detailed analytical and…

Applied Physics · Physics 2017-04-24 Nithin Chatterji , Aldrin Antony , Pradeep R. Nair