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The advancements of nanomaterials or nanostructures have enabled the possibility of fabricating multifunctional materials that hold great promises in engineering applications. The carbon nanotube (CNT)-based nanostructure is one…

Computational Physics · Physics 2015-05-22 Haifei Zhan , John M. Bell , Yuantong Gu

The rapid progress on MgB2 superconductor since its discovery[1] has made this material a strong competitor to low and high temperature superconductors (HTS) for applications with a great potential to catch the niche market such as in…

As the dimensions of electronic devices approach those of molecules, the size, geometry and chemical composition of the contact electrodes play increasingly dominant roles in device functions. It is shown here that single-walled carbon…

Materials Science · Physics 2007-05-23 Pengfei Qi , Ali Javey , Marco Rolandi , Qian Wang , Erhan Yenilmez , Hongjie Dai

High performance p- and n-type single-walled carbon nanotube (SWNT) field-effect transistors (FETs) are obtained by using high and low work function metals, Pd and Al as source/drain (S/D) electrodes respectively. Ohmic contacts made to…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Ali Javey , Qian Wang , Woong Kim , Hongjie Dai

A fresh look on carbon-based transistor channel materials like single-walled carbon nanotubes (CNT) and graphene nanoribbons (GNR) in future electronic applications is given. Although theoretical predictions initially promised that GNR…

Materials Science · Physics 2014-03-26 Franz Kreupl

Low-dimensional materials such as layered semiconductors or carbon nanotubes (CNTs) have been attracting increasing attention in the last decades due to their inherent scaling properties, which become fundamental to sustain the scaling in…

Mesoscale and Nanoscale Physics · Physics 2019-04-23 Marta Perucchini , Enrique G. Marin , Damiano Marian , Giuseppe Iannaccone , Gianluca Fiori

High performance enhancement mode semiconducting carbon nanotube field-effect transistors (CNTFETs) are obtained by combining ohmic metal-tube contacts, high dielectric constant HfO2 films as gate insulators, and electrostatically doped…

Mesoscale and Nanoscale Physics · Physics 2015-06-24 Ali Javey , Jing Guo , Damon B. Farmer , Qian Wang , Dunwei Wang , Roy G. Gordon , Mark Lundstrom , Hongjie Dai

A vertical partial gate carbon nanotube (CNT) field-effect transistor (FET), which is amenable to the vertical CNT growth process and offers the potential for a parallel CNT array channel, is simulated using a self-consistent atomistic…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 Youngki Yoon , James Fodor , Jing Guo

Single-walled carbon nanotube (SWCNT) films are promising materials for transparent conductive films (TCFs) with potential applications in flexible displays, touch screens, solar cells and solid-state lighting1,2. However, further…

Materials Science · Physics 2019-09-27 Qiang Zhang , Weiya Zhou , Kewei Li , Nan Zhang , Yanchun Wang , Zhuojian Xiao , Qingxia Fan , Sishen Xie

A method is introduced to isolate and measure the electrical transport properties of individual single-walled carbon nanotubes (SWNTs) aligned on an ST-cut quartz, from room temperature down to 2 K. The diameter and chirality of the…

Mesoscale and Nanoscale Physics · Physics 2014-08-26 Tohru Watanabe , El-Hadi S. Sadki , Takahide Yamaguchi , Yoshihiko Takano

Carbon nanotubes (CNTs) are promising candidates to improve the thermal conductivity of nano-composites. The main obstacle to these applications is the extremely high thermal boundary (Kapitza) resistance between the CNTs and their matrix.…

Mesoscale and Nanoscale Physics · Physics 2024-04-11 K. G. S. H. Gunawardana , Kieran Mullen

We investigate quantum transport in aligned carbon nanotube (CNT) fibers fabricated via solution spinning, focusing on the roles of structural dimensionality and quantum interference effects. The fibers exhibit metallic behavior at high…

We present a new concept of scanning thermal nanoprobe that utilizes the extreme thermal conductance of a carbon nanotube (CNT) to channel heat between the probe and the sample. The integration of CNT in scanning thermal microscopy (SThM)…

Mesoscale and Nanoscale Physics · Physics 2013-05-28 Peter D. Tovee , Manuel E. Pumarol , Mark C. Rosamond , Robert Jones , Michael C. Petty , Dagou A. Zeze , Oleg V. Kolosov

Carbon nanotubes (CNTs) have attracted increasing attention because of their unique structural, mechanical, and electronic properties. Surface chemistry modifications are also useful and critical to manipulate the adsorptive properties of…

Materials Science · Physics 2007-08-15 K. -S. Lin , Ruey-Bing Li , Frank Lee , Li-Cheng Lou , Su-Wei Chiu

We measure the resistance and frequency-dependent gate capacitance of carbon nanotube (CNT) thin films in ambient, vacuum, and under low-pressure (10E-6 torr) analyte environments. We model the CNT film as an RC transmission line and show…

Materials Science · Physics 2015-06-25 G. Esen , M. S. Fuhrer , M. Ishigami , E. D. Williams

The electrostatic coupling between singled-walled carbon nanotube (SWNT) networks/arrays and planar gate electrodes in thin-film transistors (TFTs) is analyzed both in the quantum limit with an analytical model and in the classical limit…

Materials Science · Physics 2010-01-12 Qing Cao , Minggang Xia , Coskun Kocabas , Moonsub Shim , John A. Rogers , Slava V. Rotkin

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

Super-aligned carbon nanotube (CNT) films have intriguing anisotropic thermal transport properties due to the anisotropic nature of individual nanotubes and the important role of nanotube alignment. However, the relationship between the…

Applied Physics · Physics 2020-02-06 Wei Yu , Xinpeng Zhao , Puqing Jiang , Changhong Liu , Ronggui Yang

Carbon Nanotubes have shown to be an attractive option in the race to find a replacement to silicon-based transistors, due to its high electrical conductivity, extraordinary mechanical strength, and thermal conductivity. However, challenges…

In the past decade, semiconducting carbon nanotube thin films have been recognized as contending materials for wide-ranging applications in electronics, energy, and sensing. In particular, improvements in large-area flexible electronics…