突触前直流偏压控制三端神经形态电解质门控有机晶体管的可塑性和动力学

Federico Rondelli, A. D. Salvo, Gioacchino Calandra Sebastianella, M. Murgia, L. Fadiga, F. Biscarini, M. D. Lauro
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引用次数: 1

摘要

研究了基于电解质门控有机晶体管的三端有机神经形态结构中突触前直流偏压的作用。通过突触前偏移,可以在短期可塑性实验中精细控制离散电导状态的数量,可以在同一神经形态装置中随意获得抑制和促进反应,也可以在成对脉冲实验中设置两个后续脉冲之间的比率。讨论了导致这些重要特征的电荷动力学与宏观器件性能指标(如电导率和跨电导率)的关系,为设计神经形态有机电子学的操作建立了一个新的关键使能参数。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Pre-synaptic DC bias controls the plasticity and dynamics of three-terminal neuromorphic electrolyte-gated organic transistors
The role of pre-synaptic DC bias is investigated in three-terminal organic neuromorphic architectures based on electrolyte-gated organic transistors—EGOTs. By means of pre-synaptic offset it is possible to finely control the number of discrete conductance states in short-term plasticity experiments, to obtain, at will, both depressive and facilitating response in the same neuromorphic device and to set the ratio between two subsequent pulses in paired-pulse experiments. The charge dynamics leading to these important features are discussed in relationship with macroscopic device figures of merit such as conductivity and transconductance, establishing a novel key enabling parameter in devising the operation of neuromorphic organic electronics.
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