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Updated: Feb 14, 2026

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Programmable Memristive Optical Antenna Via Plasmonic Tunneling Junction.

Yu Wu1, Dudu Song1, Zhengyi Lu1

  • 1Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, China.

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|February 12, 2026
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Summary

This study introduces a stable optoelectronic memristor using aluminum nanoparticles for artificial vision. This device enables electrical writing and optical reading, paving the way for advanced neuromorphic computing applications.

Keywords:
artificial facial expressionelectroluminescencelight-emitting memristormemristive displayplasmonicstunneling junction

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Area of Science:

  • Materials Science
  • Nanotechnology
  • Optoelectronics

Background:

  • Optoelectronic memristors integrate light functions with memristors for artificial vision and neuromorphic computing.
  • Existing memristive optical nanoantennas face stability issues due to nanoscale limitations, hindering programmability.

Purpose of the Study:

  • To develop a programmable, stable optoelectronic memristor with electrical writing and optical reading capabilities.
  • To demonstrate the potential of this device for image storage and display in artificial neural networks.

Main Methods:

  • Fabrication of a planar Al-AlOx-ITO tunneling junction memristor decorated with gold nanoparticles.
  • Utilizing plasmonic nanocavity effects for enhanced electron-to-photon conversion.
  • Investigating light emission from inelastic electron tunneling and its modulation by resistance switching.

Main Results:

  • Demonstrated a stable and reliable resistance switching behavior in the Al-AlOx-ITO memristor.
  • Observed light emission in the high-resistance state, quenched in the low-resistance state.
  • Successfully demonstrated image storage and display in a 1x8 pixel array by programming write/readout voltages.

Conclusions:

  • The developed memristive plasmonic tunneling junction serves as an ultracompact optoelectrical memristor.
  • This technology advances the integration of memristors for artificial neural networks and vision systems.
  • The device offers a promising platform for next-generation optoelectronic computing.