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Related Experiment Video

Updated: Feb 17, 2026

Assembly and Characterization of Biomolecular Memristors Consisting of Ion Channel-doped Lipid Membranes
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Extremely Low Operating Current Resistive Memory Based on Exfoliated 2D Perovskite Single Crystals for Neuromorphic

He Tian1, Lianfeng Zhao2, Xuefeng Wang1

  • 1Institute of Microelectronics and Tsinghua National Laboratory for Information Science and Technology (TNList), Tsinghua University , Beijing 100084, China.

ACS Nano
|December 5, 2017
PubMed
Summary

New 2D perovskite crystals enable ultra-low power neuromorphic computing. These materials facilitate ionic transport for artificial synapses, achieving record-low operating currents for efficient brain-like processing.

Keywords:
2D perovskitesneuromorphic computingorganic−inorganic hybrid perovskitesperovskite single crystalresistive memory

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Area of Science:

  • Materials Science
  • Neuroscience
  • Electronics

Background:

  • Neuromorphic computing requires extremely low energy consumption for brain-like parallel processing.
  • Current resistive memory materials struggle to balance ionic and electronic transport, limiting low-power applications.
  • Defective oxides like HfOx, AlOx, and TaOx exhibit leakage current issues.

Purpose of the Study:

  • To identify and demonstrate promising materials for low operating current nanodevices.
  • To investigate the potential of 2D Ruddlesden-Popper phase hybrid lead bromide perovskite single crystals.
  • To achieve significantly reduced program currents for energy-efficient neuromorphic computing.

Main Methods:

  • Fabrication of 2D Ruddlesden-Popper phase hybrid lead bromide perovskite single crystals.
  • Characterization of mixed electronic and ionic transport properties.
  • Fabrication and testing of resistive memory devices.
  • Visualization of ion migration and filament formation.

Main Results:

  • 2D perovskite single crystals exhibit mixed electronic and ionic transport.
  • Bromide ion migration confirms ionic transport within the exfoliated layers.
  • Resistive memories achieved extremely low program currents down to 10 pA.
  • Filament formation with approximately 20 nm diameter was observed.

Conclusions:

  • 2D Ruddlesden-Popper phase hybrid lead bromide perovskites are promising for low operating current nanodevices.
  • The observed ionic migration and diffusion function as artificial synapses at the picoampere level.
  • These findings enable the development of extremely low energy consumption neuromorphic computing.