Is vacuum annealing converts p-type single wall carbon nanotube field effect transistor (in air) to n-type (in vacuum) is universially true (?)
Journal Title: Carbon - Science and Technology - Year 2009, Vol 2, Issue 2
Abstract
Our study on nickel silicide and gold contacted single-wall-carbon-nanotube field effect transistors (SWCN-FETs) is in sharp contrast to earlier published reports of type conversion in SWCN-FETs (from p- to n-) when cycled between air and vacuum, and indicates that (1) band gap of SWCN (2) the extent to which Fermi level of the metal contact gets shifted due to adsorption/desorption of oxygen and (3) relative position of the Fermi level of the metal contact with respect to the top of the valance band of SWCN (in an oxygen-free environment) are some of the important factors that governs such phenomena.
Authors and Affiliations
Prakash R. Somani, A. Kobayashi, Y. Ohno, S. Kishimoto, T. Mizutani
Keywords
Related Articles
- EP ID EP49874
- DOI -
- Views 223
- Downloads 0
Investigation of wetting behavior of coal-chars with liquid iron by sessile drop method
Using the sessile drop approach, the wettability of four non-graphitic coal-chars with electrolytic iron and Fe-2%C-0.01%S alloy has been determined at 1550 °C, in a horizontal tube resistance furnace with an argon atmos...
Adsorption of Reactive Blue 171 from aqueous solution using low cost activated carbon prepared from agricultural solid waste: Albizia amara
The adsorption of Reactive Blue 171 (Reactive Dye) from aqueous solution using activated carbon prepared from Albizia amara pod shell waste as an adsorbent have been carried out. The experimental adsorption data fitted r...
Dry fermentation technology for utilization of Bio-energy crops/crop residues for biogas production
Indian state Punjab produces 160 lakh tones of paddy every year. More than this quantity of paddy, straw is also produced which is not properly utilized. Paddy is burnt in the farmer’s fields itself, which produces lot o...
Plane-Wave Excitation and Electromagnetic Response of Graphene : Non-Linear Effects
In graphene, the two-dimensional electrons and holes are described by the Dirac equation with a vanishing effective mass. As a consequence, under particular operative conditions, the electromagnetic response of graphene...
An artificial neural network model of the Chemical Vapor Deposition Processes for Carbon – Carbon composites.
A model of artificial neural network (ANN) is developed for the analysis of the correlation between the chemical vapor deposition (CVD) processing parameters and the densification of carbon - carbon (C/C) composites. The...