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相关论文: High Performance N-Type Carbon Nanotube Field Effe…

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Carbon nanotubes (CNTs) have large intrinsic carrier mobility due to weak acoustic phonon scattering. However, unlike two-dimensional metal-oxide-semiconductor field effect transistors (MOSFETs), substrate surface polar phonon (SPP)…

介观与纳米尺度物理 · 物理学 2015-05-13 Vasili Perebeinos , Slava Rotkin , Alexey G. Petrov , Phaedon Avouris

Single electron transistors (SETs) made from single wall carbon nanotubes (SWCNTs) are promising for quantum electronic devices operating with ultra-low power consumption and allow fundamental studies of electron transport. We report on…

介观与纳米尺度物理 · 物理学 2017-05-09 Nan Ai , Onejae Sul , Milan Begliarbekov , Qiang Song , Kitu Kumar , Daniel S. Choi , Eui-Hyeok Yang , Stefan Strauf

Carbon nanotube field-effect transistors (CNT FETs) have been proposed as possible building blocks for future nano-electronics. But a challenge with CNT FETs is that they appear to randomly display varying amounts of hysteresis in their…

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…

材料科学 · 物理学 2010-01-12 Qing Cao , Minggang Xia , Coskun Kocabas , Moonsub Shim , John A. Rogers , Slava V. Rotkin

Transparent and conductive films (TCFs) are of great technological importance. The high transmittance, electrical conductivity and mechanical strength make single-walled carbon nanotubes (SWCNTs) a good candidate for their raw material.…

We use impedance spectroscopy to measure the high frequency properties of single-walled carbon nanotube field effect transistors (swCN-FETs). Furthermore, we extend Scanning Gate Microscopy (SGM) to frequencies up to 15MHz, and use it to…

材料科学 · 物理学 2007-05-23 Cristian Staii , Rui Shao , Dawn A. Bonnell , Alan T. Johnson

We have fabricated carbon nanotube (CN) field-effect transistors with multiple, individually addressable gate segments. The devices exhibit markedly different transistor characteristics when switched using gate segments controlling the…

介观与纳米尺度物理 · 物理学 2009-11-10 S. J. Wind , J. Appenzeller , Ph. Avouris

We have studied the electronic structure and charge-carrier dynamics of individual single-wall carbon nanotubes (SWNTs) and nanotube ropes using optical and electron-spectroscopic techniques. The electronic structure of semiconducting SWNTs…

材料科学 · 物理学 2009-11-10 A. Hagen , G. Moos , V. Talalaev , J. W. Tomm , T. Hertel

The low energy spectrum of finite size metallic single-walled carbon nanotubes SWNTs) is determined. Starting from a tight binding model for the $p_{z}$ electrons, we derive the low energy Hamiltonian containing all relevant scattering…

介观与纳米尺度物理 · 物理学 2009-11-13 Leonhard Mayrhofer , Milena Grifoni

We report the transport properties of mechanically exfoliated few-layer SnSe$_{2}$ flakes, whose mobility is found with four probe measurements to be ~ 85 cm$^{2}$V$^{-1}$s$^{-1}$ at 300 K, higher than those of the majority of few-layer…

介观与纳米尺度物理 · 物理学 2016-12-21 Chenglei Guo , Zhen Tian , Yanjun Xiao , Qixi Mi , Jiamin Xue

The excellent properties of transistors, wires, and sensors made from single-walled carbon nanotubes (SWNTs) make them promising candidates for use in advanced nanoelectronic systems. Gas-phase growth procedures such as the high pressure…

介观与纳米尺度物理 · 物理学 2007-05-23 Danvers E. Johnston , Mohammad F. Islam , Arjun G. Yodh , Alan T. Johnson

We demonstrate solution processable large area field effect transistors (FETs) from aligned arrays of carbon nanotubes (CNTs). Commercially available, surfactant free CNTs suspended in aqueous solution were aligned between source and drain…

材料科学 · 物理学 2009-11-13 Paul Stokes , Eliot Silbar , Yashira M. Zayas , Saiful I. Khondaker

We demonstrate a "bottom up" approach to the computational design of a multifunctional chemical sensor. General techniques are employed for describing the adsorption coverage and resistance properties of the sensor based on density…

介观与纳米尺度物理 · 物理学 2011-05-03 D. J. Mowbray , J. M. Garcia-Lastra , K. S. Thygesen , A. Rubio , K. W. Jacobsen

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.…

介观与纳米尺度物理 · 物理学 2015-07-22 Seoung-Hun Kang , Gunn Kim , Young-Kyun Kwon

In this work, we investigate the electrical conductivity of carbon nanotubes (CNTs), with a particular focus on the effects of doping. Using a first-principles approach, we study the electronic structure, phonon dispersion, and…

材料科学 · 物理学 2024-08-07 Mina Yoon , German D. Samolyuk , Kai Li , James A. Hayne , Tolga Aytug

In this paper, we demonstrate by simulation the general usability of an electrostatically doped and electrically reconfigurable planar field-effect transistor (FET) structure. The device concept is partly based on our already published and…

材料科学 · 物理学 2014-05-30 Tillmann Krauss , Frank Wessely , Udo Schwalke

The high-frequency Raman-active phonon modes of metallic single-walled carbon nanotubes (SWNTs) are thought to be characterized by Kohn anomalies (KAs), which are expected to be modified by the doping-induced tuning of the Fermi energy…

软凝聚态物质 · 物理学 2007-05-23 Nicolas Caudal , A. Marco Saitta , Michele Lazzeri , Francesco Mauri

Controlling doping is essential for a successful integration of semiconductor materials into device technologies. However, the assessment of doping levels and the distribution of charge carriers in carbon nanotubes or other nanoscale…

For the first time, n-type few-layer MoS2 field-effect transistors with graphene/Ti as the hetero-contacts have been fabricated, showing more than 160 mA/mm drain current at 1 {\mu}m gate length with an on-off current ratio of 107. The…

材料科学 · 物理学 2014-05-13 Yuchen Du , Lingming Yang , Jingyun Zhang , Han Liu , Kausik Majumdar , Paul D. Kirsch , Peide D. Ye

Present work focuses on the effective doping of multi-walled carbon nanotube (CNT) in the ZnS:Cu phosphor system and thereafter improvement in the optical performance of electroluminescent (EL) device due to the effect of increased local…

材料科学 · 物理学 2013-08-20 Deepika Yadav , Dileep Dwivedi , Savvi Mishra , B. Sivaiah , A. Dhar , V. Shanker , D. Haranath