The impact of variation in diameter and dielectric materials of the CNT field-effect transistor

Hadi, M. F. Abdul and Hussin, H. and Soin, N. (2022) The impact of variation in diameter and dielectric materials of the CNT field-effect transistor. ECS Journal of Solid State Science and Technology, 11 (2). ISSN 2162-8769, DOI

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In today's semiconductor industry, transistor size has been continuously scaled down due to the competition between developers to provide a better performance device. Based on Moore's Law, the use of MOSFET technology might end due to its dimensions' limitation that affects its performance. Carbon Nanotube Field-effect Transistor (CNTFET) has become a prospect to replace MOSFET technology due to its carbon nanotube properties (CNT). In the CNTFET design parameters, the changes in the diameter of CNT and the dielectric materials of the oxide layer significantly affect the transistor's performance. The results show that by increasing the diameter of CNT and having a higher dielectric constant material, the on-current (Ion) and the transconductance, gm of the CNTFET will significantly increase. This effect will produce a device with a higher current ratio (Ion/Ioff) and provide a better device performance. The study also included the effect of this design parameter on the channel's average electron velocity. From this study, it can be deduced that the diameter of CNT and the dielectric material of the oxide layer greatly affect the transistor's performance.

Item Type: Article
Funders: Institute of Research and Innovation (IRMI) UiTM [Grant No: 600-IRMI/FRGS 5/3 (351/2019)], Science and Technology Development Fund (STDF), Ministry of Higher Education & Scientific Research (MHESR) [Grant No: 600-IRMI/FRGS 5/3 (351/2019)]
Uncontrolled Keywords: Semiconductor industry; Carbon Nanotube Field-effect Transistor (CNTFET); Carbon Nanotube Properties (CNT); Dielectric materials
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 09 Aug 2022 07:10
Last Modified: 09 Aug 2022 07:10

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