Memristive Behavior and Ideal Memristor of 1T Phase MoS2 Nanosheets.

Nano Lett

Department of Materials Science and Engineering, Michigan Technological University, Houghton, Michigan 49931-1295, United States.

Published: January 2016

AI Article Synopsis

  • Memristors, a type of resistor with memory, were predicted in 1971 and successfully created in 2008, promising advancements in nonvolatile memory, neuromorphic computing, and logic circuits.
  • Recent research has also highlighted significant developments in memristive behaviors using single-layer MoS2 materials, indicating a variety of applications.
  • This study specifically demonstrates that the 1T phase of exfoliated MoS2 nanosheets can uniquely change resistance based on voltage, leading to the creation of an ideal odd-symmetric memristor.

Article Abstract

Memristor, which had been predicted a long time ago (Chua, L. O. IEEE Trans. Circuit Theory 1971, 18, 507), was recently invented (Strukov, D. B.; et al. Nature 2008, 453, 80). The introduction of a memristor is expected to open a new era for nonvolatile memory storage, neuromorphic computing, digital logic, and analog circuit. Furthermore, several breakthroughs were made for memristive phenomena and transistors with single-layer MoS2 (Sangwan, V. K.; et al. Nat. Nanotechnol. 2015, 10, 403. van der Zande, A. M.; et al. Nat. Mater. 2013, 12, 554. Liu, H.; et al. ACS Nano 2014, 8, 1031. Bessonov, A. A.; et al. Nat. Mater. 2015, 14, 199. Yuan, J.; et al. Nat. Nanotechnol. 2015, 10, 389). Herein, we demonstrate that 2H phase of bulk MoS2 possessed an ohmic feature, whereas 1T phase of exfoliated MoS2 nanosheets exhibited a unique memristive behavior due to voltage-dependent resistance change. Furthermore, an ideal odd-symmetric memristor with odd-symmetric I-V characteristics was successfully fabricated by the 1T phase MoS2 nanosheets via combining two asymmetric switches antiserially.

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http://dx.doi.org/10.1021/acs.nanolett.5b04260DOI Listing

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