نتایج جستجو برای: nanotube device
تعداد نتایج: 693540 فیلتر نتایج به سال:
A high-mobility (9000 cm2/V‚s) semiconducting single-walled nanotube transistor is used to construct a nonvolatile charge-storage memory element operating at room temperature. Charges are stored by application of a few volts across the silicon dioxide dielectric between nanotube and silicon substrate, and detected by threshold shift of the nanotube field-effect transistor. The high mobility of ...
In this work the non-equilibrium Green's function formalism is used to study the role of the electron-phonon interaction on carbon nanotube based transistors. Electron-phonon interaction parameters depend on the chirality and the diameter of the nanotube. The device response is studied for a wide range of electron-phonon interaction parameters. Results indicate the importance of the effect of p...
The precise placement of single-walled carbon nanotubes SWCNTs in device architectures by ac dielectrophoresis involves the optimization of the electrode geometry, applied voltage and frequency, load resistance, and type of nanotube sample used. The authors have developed a toolkit to controllably integrate SWCNTs in device structures by the use of floating potential metal posts and appropriate...
BACKGROUND Circulating tumor cells (CTCs) can be used clinically to treat cancer. As a diagnostic tool, the CTC count can be used to follow disease progression, and as a treatment tool, CTCs can be used to rapidly develop personalized therapeutic strategies. To be effectively used, however, CTCs must be isolated at high purity without inflicting cellular damage. METHODS We designed a microsca...
A novel single electron pump based on individual molecules (a single wall carbon nanotube) is discussed in terms of the hybrid superconducting-normal conducting pumping principle. A concept demonstration device has been built based on a carbon nanotube contacted by Nb-Ti leads. Charge current quantization is achieved through rf modulation of the back gate voltage. The device is able to transfer...
The quantum behaviour of mechanical resonators is a new and emerging field driven by recent experiments reaching the quantum ground state. The high frequency, small mass, and large quality-factor of carbon nanotube resonators make them attractive for quantum nanomechanical applications. A common element in experiments achieving the resonator ground state is a second quantum system, such as cohe...
In this paper, we report a promising approach for fabricating large-scale flexible and stretchable electronics using a semiconductor-enriched carbon nanotube solution. Uniform semiconducting nanotube networks with superb electrical properties (mobility of ∼20 cm2 V(-1) s(-1) and ION/IOFF of ∼10(4)) are obtained on polyimide substrates. The substrate is made stretchable by laser cutting a honeyc...
The performance of carbon nanotube-based transistor is analyzed. The effect of geometrical parameters on the device performance is investigated as d tunnel. We have studied the influence of the material parameters, such as the height of the SB (ΦSB), and some other physical parameters like the nanotube chirality, the gate oxide thickness and the gate oxide dielectric permittivity Our results sh...
We study memory devices consisting of single-walled carbon nanotube transistors with charge storage at the SiO(2)/nanotube interface. We show that this type of memory device is robust, withstanding over 10(5) operating cycles, with a current drive capability up to 10(-6) A at 20 mV drain bias, thus competing with state-of-the-art Si-devices. We find that the device performance depends on temper...
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