Significant roles of the polymer matrix in the resistive switching behavior of polymer-based atomic switches
Significant roles of the polymer matrix in the resistive switching behavior of polymer-based atomic switches
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DOI：
10.1088/1361-6463/ab35bf
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发表时间：
2019-07
期刊：
影响因子：
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通讯作者：
K. Krishnan;M. Aono;K. Terabe;T. Tsuruoka
中科院分区：
文献类型：
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作者：
K. Krishnan;M. Aono;K. Terabe;T. Tsuruoka
研究了聚合物基体材料对固体聚合物电解质（SPE）原子开关阻变特性的影响。开关由使用掺入聚环氧乙烷、聚乙烯醇或聚乙烯吡咯烷酮的银盐的旋涂SPE膜组成，其夹在Ag和Pt电极之间。开关特性强烈地依赖于聚合物基质的结构、热和输运性质，例如其结晶度、玻璃化转变温度和离子电导率。电阻转换的温度行为可以解释为增加的链段迁移率和聚合物基质中的水蒸发之间的竞争。结果发现，结晶和半结晶聚合物电解质可能比无定形聚合物电解质在实现稳定的开关特性方面表现得更好。这些发现将有助于理解和控制基于SPE的原子开关的器件性能。
The impacts of the polymer matrix material on the resistive switching of solid polymer electrolyte (SPE)-based atomic switches are investigated. The switches consist of a spin-coated SPE film using silver salt incorporated polyethylene oxide, polyvinyl alcohol, or polyvinyl pirrolidone, which is sandwiched between Ag and Pt electrodes. The switching characteristics depend strongly on the structural, thermal, and transport properties of the polymer matrix, such as its crystallinity, glass transition temperature, and ionic conductivity. The temperature behavior of resistive switching can be explained by competition between increased segmental mobility and water evaporation in the polymer matrix. It is found that crystalline and semi-crystalline polymer electrolytes are likely to perform better than amorphous polymer electrolytes in realizing stable switching characteristics. These findings will contribute to the understanding and control of the device performance of SPE-based atomic switches.