Graphene Nanoscroll Geometry Effect on Transistor Performance

  • Mohammad Taghi AhmadiEmail author
  • Ramin Ahmadi
  • Truong Khang Nguyen


Graphene nanoscrolls (GNSs) with interesting geometry are ideal candidates for nanotechnology applications, particularly in nanoelectronics. Hence, in recent years, much attention has been paid to investigation of GNS applications owing to their remarkable properties. In this paper, a GNS-based Schottky transistors is analytically modeled. In the presented model the diverse arrangement of zigzag graphene nanoscrolls are assumed to form Schottky contacts. Based on the proposed design, the electronic parameters such as dispersion relation, density of states and effective mass by considering the effect of chirality number are investigated. As a main parameter, transmission probability is surveyed, and current–voltage characteristic under quantum tunneling effect is presented. Finally, the influences of barrier length, gate-source voltage and chirality number on I–V characteristics are explored. It is concluded that chirality number plays an important role compare to the other parameters.


Graphene nanoscrolls Schottky transistor tunneling chirality number 


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Author’s contribution

The main idea has been suggested by Dr. M.T. Ahmadi which is been modelled by Ramin Ahmadi. In the final form, the results were discussed and supported by Dr. Truong Khang Nguyen.

Conflict of interest

The authors declare no competing interests.


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Copyright information

© The Minerals, Metals & Materials Society 2019

Authors and Affiliations

  • Mohammad Taghi Ahmadi
    • 1
    • 2
    Email author
  • Ramin Ahmadi
    • 3
  • Truong Khang Nguyen
    • 1
    • 2
  1. 1.Division of Computational Physics, Institute for Computational ScienceTon Duc Thang UniversityHo Chi Minh CityVietnam
  2. 2.Faculty of Electrical and Electronics EngineeringTon Duc Thang UniversityHo Chi Minh CityVietnam
  3. 3.Department of Physics, Faculty of ScienceUrmia UniversityUrmiaIran

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