Electrochemical System with Memimpedance Properties
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- 作者：Kevin MacVittie ; Evgeny Katz
- 刊名：Journal of Physical Chemistry C
- 出版年：2013
- 出版时间：November 27, 2013
- 年：2013
- 卷：117
- 期：47
- 页码：24943-24947
- 全文大小：256K
- 年卷期：v.117,no.47(November 27, 2013)
- ISSN：1932-7455
文摘
An electrochemical system based on a pH-switchable polymer-modified electrode was designed to demonstrate memory properties. The pH changes in the system were produced electrochemically in situ upon electrochemical reduction or oxidation of H2O2. Depending on the direction of the current, different pH changes were achieved and the modified electrode was switched between higher or lower resistance and capacitance. In the absence of the current the electrode preserved the last resistance and capacitance values, thus demonstrating properties of memristor and memcapacitor simultaneously (memimpedance). The switchable interface between the modified electrode and solution potentially allows functional integration between the electrochemical memimpedance device and biomolecular systems processing chemical signals.