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基于聚二电介质的超低功率光电子突触晶体管用于传感器内储计算

Xiaosong Wu^1,2,3, Shuhui Shi⁴, Baoshuai Liang^1,2,3

¹State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P. R. China.

Science advances

|April 17, 2024

概括

研究人员开发了用于神经形态计算的新型聚二电晶体管,克服了固体电解质的局限性. 这些生物启发的设备提供超低功耗和增强的光响应,用于先进的传感器视觉应用.

科学领域:

材料科学材料科学材料科学
神经科学是一个神经科学.
电气工程电气工程

背景情况:

使用固体电解质的生物灵感晶体管突触使低功耗的神经形态计算成为可能.
现有的设备面临着诸如高泄漏电流,电解风险和因离子迁移和激电子-极子火而导致的有限光响应等挑战.

研究的目的:

为了解决神经形态器件中固体电解质的局限性.
为传感器应用开发具有改进光响应和超低功耗的晶体管.

主要方法:

将固体电解质替换为具有共连接的离子和离子的多晶离子.
研究离子扩散,捕获和界面电荷捕获机制.
制造和测试基于聚二的晶体管,用于突触行为和储库计算.

主要成果:

聚二晶体管表现出光电子突触行为,功耗超低 (每尖端约250JJ).
防止长距离离子迁移和永久性离子捕获,减轻设备退化.
在轨道感知任务中实现了高性能传感器内储计算,准确度为95.56%.

结论:

聚二为先进的神经形态装置提供了固体电解质的有希望的替代品.
开发的晶体管具有增强的光响应和超低功率,适合传感器内视觉.
这项工作为更高效,更有能力的生物灵感计算系统铺平了道路.

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