Nanoscale High-k Dielectrics for Junctionless Nanowire Transistor for Drain Current Analysis

  • J. Charles Pravin
  • P. Prajoon
  • Flavia Princess Nesamania
  • P. Senthil Kumar
  • D. Nirmal
  • G. Srikesh
Article
  • 5 Downloads

Abstract

Hafnium oxide (HfO2) nanoparticles were prepared by a chemical precipitation method and its physical and electrical properties were investigated. HfO2 thin films were prepared via a dip-coating method using the synthesized HfO2 nanoparticles. The crystallinity and resistivity of both prepared thin films were analysed by x-ray diffraction and impedance analyser. The crystalline size was found to be 8 nm and 13 nm for HfO2 and SiO2 thin films, respectively. The electrical (bulk) resistance was calculated by fitting the complex impedance plane using z-view software, and was found to be 2.15 × 107 Ω for HfO2, whereas it was found to be 3.6 × 105 Ω for SiO2 thin films. Junctionless nanowire transistors were implemented using HfO2 dielectric and performance was compared to SiO2 gate dielectric. The results revealed that nano-sized HfO2 proves to be a better gate dielectric material than conventional gate dielectrics. Thus, the nano-sized HfO2 based junctionless transistor device is more suitable for future low power applications.

Keywords

Electronics device materials high-k gate dielectrics materials material characterization device simulation 

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Copyright information

© The Minerals, Metals & Materials Society 2018

Authors and Affiliations

  1. 1.VLSI Research Lab, Department of Electronics and Communication EngineeringKalasalingam Academy of Research and EducationKrishnankoilIndia
  2. 2.Department of Electronics and Communication EngineeringProvidence College of EngineeringChengannurIndia
  3. 3.VLSI Laboratory, Department of Electronics and Communication EngineeringKarunya Institute of Technology and SciencesCoimbatoreIndia
  4. 4.Department of PhysicsKPR Institute of Engineering and TechnologyCoimbatoreIndia
  5. 5.Material Chemistry Laboratory, Department of ChemistryKarunya UniversityCoimbatoreIndia

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