Xi 'an Key Laboratory of Compound Semiconductor Materials and Devices, School of Physics & Information Science, Shaanxi University of Science and Technology, Xi'an, 710021, P. R. China.
Shanxi-Zheda Institute of Advanced Materials and Chemical Engineering, Taiyuan, 030024, P. R. China.
Adv Sci (Weinh). 2024 Aug;11(29):e2403665. doi: 10.1002/advs.202403665. Epub 2024 Jun 3.
The development of high-performance artificial synaptic neuromorphic devices poses a significant challenge in the creation of biomimetic sensing neural systems that seamlessly integrate both sensory and computational functionalities. In pursuit of this objective, promising bionic opto-olfactory co-sensory artificial synapse devices are constructed utilizing the BP-C/CNT (2D/1D) hybrid filter membrane as the resistive layer. Experimental results demonstrated that the devices seamlessly integrated the light modulation, gas detection, and biological synaptic functions into a single device while addressing the challenge with separating artificial synaptic devices from sensors. These devices offered the following advantages: 1) Simulating visual synapses, they can effectively replicate fundamental synaptic functions under both electrical and optical stimulation. 2) By emulating olfactory synapse responses to specific gases, they can achieve ultra-low detection limits and rapid identification of ethanol and acetone gases. 3) They enable photo-olfactory co-sensing simulations that mimic synaptic function under light-modulated pulse conditions in distinct gas environments, facilitating the study of synaptic learning rules and Pavlovian responses. This work provides a pioneering approach for exploring highly stable 2D BP-based optoelectronics and advancing the development of biomimetic neural systems.
高性能人工突触神经形态器件的发展在创建仿生传感神经系统方面提出了重大挑战，这些系统需要无缝集成传感和计算功能。为了实现这一目标，利用 BP-C/CNT（二维/一维）混合滤膜作为电阻层，构建了有前途的仿生光电协同传感人工突触器件。实验结果表明，该器件将光调制、气体检测和生物突触功能集成到单个器件中，同时解决了将人工突触器件与传感器分离的挑战。这些器件具有以下优点：1）模拟视觉突触，它们可以在电和光刺激下有效地复制基本的突触功能。2）通过模拟嗅觉突触对特定气体的响应，它们可以实现超低检测限和对乙醇和丙酮气体的快速识别。3）它们能够进行光-嗅协同传感模拟，在不同气体环境下模拟光调制脉冲条件下的突触功能，有助于研究突触学习规则和巴甫洛夫反应。这项工作为探索高度稳定的基于二维 BP 的光电技术提供了一种开创性的方法，并推进了仿生神经系统的发展。
