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LSU Doctoral Dissertations

2008

Carrier Concentration

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Current Transport Modeling Of Carbon Nanotube Field Effect Transistors For Analysis And Design Of Integrated Circuits, Jose Mauricio Marulanda Prado Jan 2008

Current Transport Modeling Of Carbon Nanotube Field Effect Transistors For Analysis And Design Of Integrated Circuits, Jose Mauricio Marulanda Prado

LSU Doctoral Dissertations

The purpose of this study was to develop a complete current transport model for carbon nanotube field effect transistors (CNT-FETs) applicable in the analysis and design of integrated circuits. The model was derived by investigating the electronic structure of carbon nanotubes and using basic laws of electrostatics describing a field effect transistor. We first derived analytical expressions for the carrier concentration in carbon nanotubes for different chiral vectors (n,m) by studying and characterizing their electronic structure. Results showed a strong relation to the diameter and wrapping angle of carbon nanotubes. The charge distribution in a CNT-FET is characterized from the …