Article Two‐Dimensional Heterostructure Complementary Logic Enabled by Optical Writing

Ayaz Ali ; Matthias Schrade ; Wen Xing ; Per Erik Vullum ; Ozhan Koybasi ; Takashi Taniguchi SAMURAI ORCID (National Institute for Materials ScienceROR) ; Kenji Watanabe SAMURAI ORCID (National Institute for Materials ScienceROR) ; Branson D. Belle

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Citation
Ayaz Ali, Matthias Schrade, Wen Xing, Per Erik Vullum, Ozhan Koybasi, Takashi Taniguchi, Kenji Watanabe, Branson D. Belle. Two‐Dimensional Heterostructure Complementary Logic Enabled by Optical Writing. Small Science. 2024, 4 (5), 2300319. https://doi.org/10.1002/smsc.202300319
SAMURAI

Description:

(abstract)

Integrated logic circuits using atomically thin, two-dimensional (2D) materials offer several potential advantages compared to established silicon technologies such as increased transistor density, circuit complexity, and lower energy dis- sipation leading to scaling benefits. In this article, a novel approach to achieve tunable doping in 2D semiconductors is explored to achieve complementary transistors and logic integration. By selectively transferring WSe2 onto hBN and SiO2 substrates, complementary transistor behavior (n- and p-type) was achieved using a UV light source and electrostatic activation. Furthermore, advanced characterization techniques, including high-resolution transmission electron microscopy (HRTEM) and Kelvin probe force microscopy (KPFM), provided insights into the chemical composition and surface potential changes after UV writing. Finally, a logic inverter was successfully implemented using selectively photo-induced doped WSe2 transistors, showcasing the potential for practical logic applications. This innovative method opens new avenues for designing energy-efficient and reconfigurable 2D semiconductor circuits, addressing key challenges in modern electronics.

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Keyword: Integrated logic circuits, 2D semiconductors, complementary transistors

Date published: 2024-03-01

Publisher: Wiley

Journal:

  • Small Science (ISSN: 26884046) vol. 4 issue. 5 2300319

Funding:

  • Ministry of Education, Culture, Sports, Science and Technology
  • Norges Forskningsråd 295864
  • Norges Forskningsråd 280788
  • Norges Forskningsråd 197405
  • Japan Society for the Promotion of Science 21H05233
  • Japan Society for the Promotion of Science 20H00354
  • Japan Society for the Promotion of Science 23H02052
  • Higher Education Commision, Pakistan 20‐14470/NRPU/R&D/HEC/2021

Manuscript type: Publisher's version (Version of record)

MDR DOI:

First published URL: https://doi.org/10.1002/smsc.202300319

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Updated at: 2025-02-23 22:46:04 +0900

Published on MDR: 2025-02-23 22:46:05 +0900