Study of Electron Transport in Organic and Inorganic Atomic Monolayer Based MOS/MOSFET

TL;DR

This study compares organic and inorganic monolayer materials in MOS/MOSFET devices, demonstrating improved electrical characteristics over traditional SiO2-based devices for nanoelectronic applications.

Contribution

It introduces and evaluates novel organic and inorganic monolayer configurations for MOSFETs, showing their advantages over conventional SiO2-based devices.

Findings

Configurations exhibit smaller DIBL and lower threshold voltage.

Organic/inorganic monolayers outperform 2nm SiO2 in device performance.

Enhanced suitability for next-generation nanoelectronics.

Abstract

The wide research interest for the potential nanoelectronics applications are attracted by the organic and inorganic monolayer materials. In this work, we have studied the organic monolayer such as trichloro (1H,1H,2H,2H-perfluorooctyl)-silane (FOTS), hexamethyldisilazane (HMDS) and inorganic monolayers such as hexagonal - boron nitride (h-BN) and molybdenum disulfide (MoS2) based MOS devices. The organic monolayer based configurations are Au/FOTS/p-Si and Au/HMDS/p-Si. The inorganic monolayer based configurations are Au/MoS2/SiO2/p-Si and Au/h-BN/SiO2/p-Si. These configurations were examined and compared with Au/SiO2/p-Si MOS configuration using the Multi-dielectric Energy Band Diagram Program (MEBDP) and MOSFeT simulation software. The C-V and I-V characteristics of MOS and MOSFET of FOTS, HMDS, h-BN, MoS2 and SiO2 were reported. The results show that the above configurations are suitable for designing MOSFETs with smaller drain induced barrier lowering (DIBL) and reduced threshold voltage. We noted that the above configurations are better than 2nm thick dielectric SiO2 based MOSFET with a channel length of 10nm.