Donor-acceptor-type poly[chalcogenoviologen-alt-triphenylamine] for synaptic biomimicking and neuromorphic computing.
Donor-acceptor-type poly[chalcogenoviologen-alt-triphenylamine] for synaptic biomimicking and neuromorphic computing.
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DOI：
10.1016/j.isci.2021.103640
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发表时间：
2022-01-21
期刊：
影响因子：
5.8
通讯作者：
Chen Y
中科院分区：
文献类型：
--
作者：
Zhao Z;Che Q;Wang K;El-Khouly ME;Liu J;Fu Y;Zhang B;Chen Y
聚合物忆阻器是低功耗边缘计算范例的杰出候选者。以硫属紫精为电子受体，4-（溴甲基）-N-（4-（溴甲基）苯基）-N-苯基苯胺为电子给体，通过直接偶联合成了聚[硫属紫精-alt-三苯胺]（PCVTPA）。在紫精支架材料中引入硫族元素（S、Se、Te），与传统的紫精相比，可以大大提高材料的导电性、电化学性能和电致变色性能。以PTeVTPA为例，所制备的具有Al/PTeVTPA/ITO结构的电子器件具有优异的多级存储和历史相关的忆阻开关性能。与独特的忆阻行为相关联，基于PTeVTPA的器件不仅可以用于模拟突触增强/抑制、人类的学习和记忆功能以及从短时程突触可塑性到长时程突触可塑性的转变，而且还可以进行十进制算术运算。该工作有望为将来构建高性能的突触仿生和神经形态计算系统提供一系列新的思路。合成了聚[硫族紫精-alt-三苯胺]（PCVTPA），并将其应用于生物信息学、应用科学、计算机科学等高性能计算领域。
Polymer memristors are preeminent candidates for low-power edge computing paradigms. Poly[chalcogenoviologen-alt-triphenylamine] (PCVTPA) has been synthesized by direct coupling of chalcogeno-viologen as electron acceptor and 4-(bromomethyl)-N-(4-(bromo-methyl)phenyl)-N-phenylaniline as electron donor. The introduction of chalcogen atoms (S, Se, Te) into viologen scaffolds can greatly improve electrical conductive, electrochemical, and electrochromic properties of the materials when compared with the conventional viologens. Taking PTeVTPA as an example, the as-fabricated electronic device with a configuration of Al/PTeVTPA/ITO exhibits excellent multilevel storage and history-dependent memristive switching performance. Associated with the unique memristive behavior, the PTeVTPA-based device can not only be used to emulate the synaptic potentiation/depression, the human's learning and memorizing functions, and the transition from short-term synaptic plasticity to long-term plasticity but also carry out decimal arithmetic operations as well. This work will be expected to offer a train of new thought for constructing high-performance synaptic biomimicking and neuromorphic computing system in the near future. Poly[chalcogenoviologen-alt-triphenylamine] (PCVTPA) has been synthesized PCVTPA-based memristor exhibits excellent memristive performance PCVTPA-based memristor is capable of executing arithmetic operations on decimal PCVTPA shows great potential in constructing intelligent computing system High-performance computing in bioinformatics; Applied sciences; Computer science
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