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Related Experiment Video

Updated: Mar 18, 2026

Assembly and Characterization of Biomolecular Memristors Consisting of Ion Channel-doped Lipid Membranes

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Nonvolatile Optoelectronic Synapses and Brain-Inspired Neuromorphic Applications Based on NbOCl₂/α-In₂Se₃

Weidong Dai¹, Cheng Qi¹, Jinpeng Zhao¹

¹College of Physics and Electronic Engineering, Hengyang Normal University, Hengyang 421008, China.

ACS Applied Materials & Interfaces

|March 16, 2026

Summary

This study introduces a novel NbOCl₂/α-In₂Se₃ heterojunction device with three distinct conductive pathways. This design enables high-performance optoelectronics and advanced neuromorphic computing, demonstrating significant potential for future intelligent systems.

Keywords:

NbOCl2/α-In2Se3 multipathway integration neuromorphic computing nonvolatile optoelectronic synapse

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Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

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Published on: August 2, 2019

Area of Science:

Materials Science
Condensed Matter Physics
Nanotechnology

Background:

Two-dimensional van der Waals heterostructures offer tunable band structures and strong light-matter interactions for optoelectronics.
Integrating photodetection and neuromorphic functionalities in a single platform is challenging due to control over charge transport pathways.

Purpose of the Study:

To develop a multifunctional device platform for advanced optoelectronic and neuromorphic applications.
To investigate the charge transport mechanisms and performance of a novel NbOCl₂/α-In₂Se₃ heterojunction.

Main Methods:

Fabrication of a NbOCl₂/α-In₂Se₃ heterojunction device with three integrated conductive pathways.
Characterization of optoelectronic properties including responsivity, external quantum efficiency, and detectivity.
Evaluation of synaptic plasticity and simulation of neural network functionalities using the device's optoelectronic behavior.

Main Results:

The device exhibited remarkable optoelectronic performance with high responsivity (2933 A/W), ultrahigh external quantum efficiency (7.67 × 10⁵%), and detectivity (2.29 × 10¹² Jones).
Demonstrated fast photoresponse (52 ms response, 2122 ms decay) and superior synaptic plasticity with high learning retention (6.58 μA) and low forgetting rate (0.073).
Achieved 92.5% accuracy on the MNIST dataset by simulating neural network learning and forgetting.

Conclusions:

The NbOCl₂/α-In₂Se₃ heterostructure serves as a versatile platform for integrated optoelectronic systems.
The trichannel design facilitates efficient parallel carrier transport, enabling multifunctional device capabilities.
This work paves the way for intelligent sensing and advanced neuromorphic computing applications.