Small Band-gap-based CNT for Modeling of Nano Sensor

Modeling phenomena of small band -gap Carbon Nanotube (CNT) is analyzed in this paper. Device physics of CNT is studied and do the calculation of sub -band for zigzag CNT to model small band -gap tubes. Each carbon nanotube is illustrated as a single graphite sheet turned round into a cylindrical shape so that the arrangement is one dimensional with axial proportion. A comparison is made with the current literature to show that the proposed chirality CNT with small band -gap which performs the modeling of nano sensor. Furthermore, a sensing device is modeled and discussed in this paper. This carbon nanotube based sensing device makes it possible produce huge amount of nano chips as a disposable cartridge for diagnostic purposes. The optimum CNT is proposed in this paper to model a nano -electrode device. This research outcome shows that the importance of identification with verified uniqueness of high reliability and economical micro -fabrication for cost effectiveness. (C) 2014 The Authors. Published by Elsevier B.V.