Theoretical Determination of the Effective Parameters Into the Carbon Nanotube networks behaviour

Abstract

Abstract. As a result of the high improvement rate of carbon nanotubes (CNTs) fabrication process and its tremendous important applications in various fields, the manuscript is devoted to the study of CNTs effective parameters for the case of nano-dimensional networks. It is also called Carbon nanotube networks (CANETs). Parameters such as density, allowable adjacent distance, phase angles and radius of CNTs are determined. Isotropy performance as a function of these CNTs parameters is discussed. This allows us to determine the suitable phase angles and adjacent distance between each one CNT and other in the case of random distribution. Also, the relation between the FET conductance and mobility between the transmitter and receiver destination as a function of different CNTs parameters are theoretically studied. From the resultsobtained, one can recognize that the CNTs properties play an important role for determining the CANETs behaviour. One of the effective CNTs parameters is the longitudinal length, LCNT as it is commonly used in various CANETs figure of merit factors. According to the calculated values of CNTs length and radius, the allowable adjacent distance that achieves high FET conductance is between 3-15nm. The phase angle between CNTs is essential for achieving the intersections, nanonodes, in the path between the destination terminals. As a consequence of random distribution of CNTs in a specified area, the wide range of phase angles is studied from 1.5° to 75° with two degree increments in each step. The important fact that is concluded from the results is that the ability to apply phase angle modulation in the CANETs and its advantages to secure the data until it reaches to the terminal in shortest data path distance. Moreover, the obtained FET mobility values (50-150 cm2/Vs) under considered conditions give the facility to fabricate the CNTs in nanodimensional practical phase processes.