This report focuses on the design, fabrication and characterization of vacuum field emission (VFE) devices, specifically on the triode and integrated differential amplifier (diff-amp), utilizing CNTs synthesized by microwave plasma chemical vapor deposition in conjunction [...]
We report the fabrication of field-emission devices based on vertically aligned carbon nanotubes that possess a novel gate structure with applications in flat-panel displays, nanolithography systems and new sensor technologies. The devices consist of CNTs [...]
, Chang C-C
, Chang Y.Y.
, Huang B.R.
, Fu C.S.
, Chang C-C
, Chang Y.Y.
, Lai S.W.
, Chiou J.M.
, Southern Taiwan University of Technology, TW
Carbon nanotube is the primary field emission source in many applications, but there has been limited report on direct growth of CNT on metal surface with CVD method due to technical difficulties. This research propose [...]
Electrical contacts play a key role in electronics. As new materials such as nanotubes and nanowires are explored for nanoelectronics, the fundamental aspects of electrical contacts need to be re-examined due to the unique properties [...]
Light absorption leads inevitably to electronic excitation and inelastic electron scattering, creating phonons and resulting in the increase of the lattice temperature. By using photons with energies significantly above the fundamental band gap of the [...]
The growth dynamics of single-walled carbon nanotube (SWNT) is observed in real-time using an in-situ ultra-high vacuum transmission electron microscope at 650 oC. The SWNTs preferentially grow on smaller sized catalyst particles (diameter ≤ 6 [...]
Employing self-assembled catalyst-containing block copolymer templates, we have successfully generated a variety of highly ordered and uniform-sized catalytically active transition metal nanostructures. These catalyst-containing nanostructures have been used to produce high-quality and single-walled carbon nanotubes [...]
A critical technological challenge for many potential carbon-nanotubes (CNT) and carbon nanofibers (CNF) applications is to have a process for a direct synthesis of aligned/micropatterned CNTs/CNFs on temperature-sensitive surfaces. Currently there is no process that [...]
In this work, we present a method for directed lateral growth of CNTs between electrodes on a substrate during an in-situ CNT growth process, by utilizing plasma induced charging inherent in a Radio Frequency (RF) [...]
We explore the chemistry of reduced SWNT and show that it is more advantegous than the chemistry of neutral SWNT. In particular we will show a novel and cost saving functionalization procedureand how it leads [...]
Nanotubes and nanoparticles were obtained from a lamellar solid phase using a two step method: mechanical alloying (MA) and heat treatment. MA was used to prepare the monometallic carbide and the bimetallic carbides by milling [...]
In this works, we developed a top-down fabrication method to pattern and form carbon nanotube(CNT) interconnects with Cu encapsulation. Using this method, we fabricated spiral Cu-encapsulated CNT inductors for RF ICs and investigated the inductance [...]
In this paper, we first investigate mechanisms of nanotube-based co-axial oscillators, shown in Figure 1, based on molecular dynamics simulation. We mainly study the interlayer friction between the outer tube and the inner tube when [...]
ALTRAS-CNTS is a powerful full-band based quantum transport simulator for CNT energy-band and CNFET performance calculation. It can directly compute device tunneling gate current in the radial direction, drain current in the channel and other [...]
Recently, we have been able to approach the ultimate vertical scaling limit of carbon nanotube field effect transistors (FETs) and reliably achieve S ~ 60 mV/decade at room temperature, by non-covalent functionalization of single walled [...]
Even though gas phase reaction using plasma CVD reactor seems to be the most promising for scale up of single walled and multi walled carbon nano tube (CNT) products, it still remains several serious issues [...]
Since carbon nanotubes have special mechanical properties, they tend to be used as reinforcements in composites. The stress transfer between the nanotubes and the matrix at the interface critically controls the mechanical properties of these [...]
Single-walled carbon nanotube field-effect transistors with thin tunnel barriers were investigated, and room-temperature single-electron transistor (SET) operation was realized. Single-walled carbon nanotubes were grown by thermal chemical vapor deposition at 820 degrees Celsius for 10 [...]
Individual carbon nanotube (CNT) cold field emitters are promising point electron sources because of their low energy spread, high brightness, and low power consumption [1-3]. Potential high-resolution applications for these efficient electron sources include advanced [...]
Carbon nanotubes (CNTs) are currently among the best field emitters for a variety of technological applications. However, from mathematical viewpoint, approach towards understanding the physics of nanotube based field emission of a thin film is [...]
The potential of using a double-faced wall stagnation flow burner in mass production of carbon nanotubes was evaluated experimentally and computationally. With nitrogen-diluted premixed ethylene-air flames established on the Ni-coated stainless steel or Ni-sintered, double-faced [...]
Molecular dynamics and quantum mechanics are the best method for analysis the CNTs behavior. Bur because of the difficulties and cost, this task is limited to small structure with limited atoms number. In this paper, [...]
Among the items in the design of new generation of electronic devices there are the measurement and understanding of the current-voltage response of an electronic circuit in which molecular systems like carbon nanotubes (CNTs) act [...]
In the synthesis of carbon nanotubes two of the most important parameters to consider are the type of support and the kind of catalytic metal. In this work we have studied the thermal stability of [...]
Journal: TechConnect Briefs
Volume: 1, Technical Proceedings of the 2007 NSTI Nanotechnology Conference and Trade Show, Volume 1
Published: May 20, 2007
Industry sector: Advanced Materials & Manufacturing
Topic: Carbon Nano Structures & Devices