材料科学
佩多:嘘
突触
电解质
电极
Nafion公司
电化学
纳米技术
化学
神经科学
图层(电子)
生物
物理化学
作者
Trong Danh Nguyen,Tran Quang Trung,Yurim Lee,Nae‐Eung Lee
标识
DOI:10.1002/adem.202100918
摘要
Stretchable artificial synaptic devices are promising for integration into soft neuromorphic systems. However, the organic electrochemical transistor (OECT)‐based synaptic device is challenging due to the difficulty of obtaining high mechanical deformability and durability as well as high long‐term plasticity (LTP) and retention time. Herein, a highly stable and stretchable synaptic OECT fabricated on a 3D mogul‐patterned substrate with stress absorption capability with improved synaptic properties is reported. The mechanical stability of a poly(3,4‐ethylenedioxythiophene)polystyrene sulfonate (PEDOT:PSS) channel and, in turn, the OECT is improved by adding additives in the channel. Synaptic properties including synaptic weight (SW), LTP, and retention time could be tuned and improved by adopting a Nafion membrane between the channel and the gate electrode, which modifies the transport dynamics of ions in the electrolyte across the membrane. This approach paves a way for improving and tuning the synaptic properties of stretchable biomimetic OECT synapses.
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