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A Metal-Oxide-Semiconductor (MOS) capacitor is a fundamental structure used extensively in semiconductor device technology, particularly in the fabrication of integrated circuits and MOSFETs (metal-oxide-semiconductor field-effect transistors). The MOS capacitor consists of three layers: a metal gate, a dielectric oxide, and a semiconductor substrate.
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In Situ Transmission Electron Microscopy with Biasing and Fabrication of Asymmetric Crossbars Based on Mixed-Phased a-VOx
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Complementary Resistive Switching Behavior in Tetraindolyl Derivative-Based Memory Devices.

Surajit Sarkar1, Farhana Yasmin Rahman1, Hritinava Banik1

  • 1Department of Physics, Thin Film and Nanoscience Laboratory, Suryamaninagar, West Tripura, 799022 Agartala, Tripura, India.

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|July 21, 2022
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Summary
This summary is machine-generated.

Complementary resistive switching (CRS) devices overcome sneak path issues in bipolar resistive switching (BRS) devices. Indole1 molecules demonstrate a temperature-induced transition from BRS to CRS, showing potential for ultradense memory applications.

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Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Device Physics

Background:

  • Bipolar resistive switching (BRS) devices suffer from sneak path issues in crossbar arrays.
  • Complementary resistive switching (CRS) offers a solution to sneak path problems.
  • Indole derivatives are explored for advanced memory applications.

Purpose of the Study:

  • To investigate the resistive switching behavior of 1,4-bis(di(1H-indol-3-yl)methyl)benzene (Indole1) molecules.
  • To explore the potential of Indole1 for complementary resistive switching (CRS) memory applications.
  • To analyze the temperature-induced transition from BRS to CRS in Au/Indole1/ITO devices.

Main Methods:

  • Fabrication of Au/Indole1/Indium tin oxide (ITO) devices.
  • Characterization of resistive switching properties under varying temperatures (≥353 K).
  • Evaluation of memory characteristics including memory window, data retention, stability, and device yield.

Main Results:

  • Au/Indole1/ITO devices exhibited bipolar resistive switching (BRS) at ambient conditions.
  • A dynamic evolution from BRS to CRS was observed at temperatures of 353 K and higher.
  • The CRS mode showed a significant memory window (∼10^3), good data retention (5.1 × 10^3 s), and stability over 50 days with a device yield of ∼60%.

Conclusions:

  • Indole1 molecules can facilitate a temperature-triggered transition to complementary resistive switching (CRS).
  • The observed CRS behavior with excellent performance metrics suggests potential for ultradense resistive random access memory (RRAM).
  • Indole derivatives represent a promising class of materials for future high-density memory technologies.