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Effect of Bending on the Electrical Characteristics of Flexible Organic Single Crystal-based Field-effect Transistors
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High-Performance Field-Effect Transistors Based on αP and βP.

Enrique Montes1, Udo Schwingenschlögl1

  • 1King Abdullah University of Science and Technology (KAUST), Physical Sciences and Engineering (PSE), Thuwal, 23955-6900, Saudi Arabia.

Advanced Materials (Deerfield Beach, Fla.)
|March 26, 2019
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Summary

Researchers explored black and blue phosphorus nanoribbons to design novel junction-free field-effect transistors. These transistors show excellent performance, paving the way for advanced electronic devices.

Keywords:
black phosphorusblue phosphorusfield-effect transistorsnanoribbonstransport

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Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Nanotechnology

Background:

  • Phosphorus nanoribbons exhibit unique electronic properties.
  • Field-effect transistors (FETs) are crucial electronic components.
  • Junction-free designs offer potential advantages in device performance.

Purpose of the Study:

  • To investigate the electronic properties of black and blue phosphorus nanoribbons.
  • To propose a novel junction-free field-effect transistor design using these nanoribbons.
  • To characterize the performance of the proposed transistor architecture.

Main Methods:

  • First-principles calculations were employed to study electronic properties.
  • The nonequilibrium Green's function method was used for characterization.
  • Simulations focused on armchair and zigzag nanoribbon configurations.

Main Results:

  • Black and blue phosphorus nanoribbons possess distinct electronic characteristics.
  • A functional junction-free FET design was proposed using metallic armchair and semiconducting zigzag nanoribbons.
  • The proposed transistors demonstrated high on/off ratios and low subthreshold swings.

Conclusions:

  • The proposed junction-free field-effect transistors based on phosphorus nanoribbons exhibit outstanding performance.
  • This work highlights the potential of phosphorus nanoribbons in next-generation electronics.
  • Further research into phosphorus-based nanodevices is warranted.