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Phosphorene/rhenium disulfide heterojunction-based negative differential resistance device for multi-valued logic

Author

Listed:
  • Jaewoo Shim

    (School of Electronic and Electrical Engineering, Sungkyunkwan University)

  • Seyong Oh

    (School of Electronic and Electrical Engineering, Sungkyunkwan University)

  • Dong-Ho Kang

    (School of Electronic and Electrical Engineering, Sungkyunkwan University)

  • Seo-Hyeon Jo

    (School of Electronic and Electrical Engineering, Sungkyunkwan University)

  • Muhammad Hasnain Ali

    (School of Electronic and Electrical Engineering, Sungkyunkwan University)

  • Woo-Young Choi

    (School of Electronic and Electrical Engineering, Sungkyunkwan University)

  • Keun Heo

    (Frontier Technology Lab, R&D Headquarters, SK Hynix Co. Ltd.)

  • Jaeho Jeon

    (Sungkyunkwan University Advanced Institute of Nanotechnology, Sungkyunkwan University)

  • Sungjoo Lee

    (Sungkyunkwan University Advanced Institute of Nanotechnology, Sungkyunkwan University)

  • Minwoo Kim

    (Sungkyunkwan University Advanced Institute of Nanotechnology, Sungkyunkwan University)

  • Young Jae Song

    (Sungkyunkwan University Advanced Institute of Nanotechnology, Sungkyunkwan University)

  • Jin-Hong Park

    (School of Electronic and Electrical Engineering, Sungkyunkwan University)

Abstract

Recently, negative differential resistance devices have attracted considerable attention due to their folded current–voltage characteristic, which presents multiple threshold voltage values. Because of this remarkable property, studies associated with the negative differential resistance devices have been explored for realizing multi-valued logic applications. Here we demonstrate a negative differential resistance device based on a phosphorene/rhenium disulfide (BP/ReS2) heterojunction that is formed by type-III broken-gap band alignment, showing high peak-to-valley current ratio values of 4.2 and 6.9 at room temperature and 180 K, respectively. Also, the carrier transport mechanism of the BP/ReS2 negative differential resistance device is investigated in detail by analysing the tunnelling and diffusion currents at various temperatures with the proposed analytic negative differential resistance device model. Finally, we demonstrate a ternary inverter as a multi-valued logic application. This study of a two-dimensional material heterojunction is a step forward toward future multi-valued logic device research.

Suggested Citation

  • Jaewoo Shim & Seyong Oh & Dong-Ho Kang & Seo-Hyeon Jo & Muhammad Hasnain Ali & Woo-Young Choi & Keun Heo & Jaeho Jeon & Sungjoo Lee & Minwoo Kim & Young Jae Song & Jin-Hong Park, 2016. "Phosphorene/rhenium disulfide heterojunction-based negative differential resistance device for multi-valued logic," Nature Communications, Nature, vol. 7(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:7:y:2016:i:1:d:10.1038_ncomms13413
    DOI: 10.1038/ncomms13413
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