Abstract
By applying a DC electrical bias to a central graphene gate electrode, which separated the anode and the cathode in an electrochemical cell, we controlled the external cell's current, Icell, electrically. By irradiating the cell with modulated light intensity, we obtained an AC open-circuit response. The optically induced open-circuit AC voltage could be tuned by the DC electrical bias. Such findings suggest novel methods to control and monitor ion currents in electrochemical cells.
Original language | English (US) |
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Pages (from-to) | 308-312 |
Number of pages | 5 |
Journal | Electrochimica Acta |
Volume | 95 |
DOIs | |
State | Published - Apr 15 2013 |
All Science Journal Classification (ASJC) codes
- General Chemical Engineering
- Electrochemistry
Keywords
- Electrically controlled electrochemical cells
- Gate electrode
- Graphene electrode
- Optically controlled electrochemical cells