Electrochemical sensor comprising a 2-dimensional electron gas layer (2DEG) and method for electrochemical sensing using such electrochemical sensor

摘要

Configuration comprising a substantially planar electrode layer (42), in a first plane, the configuration further comprising a substantially planar 2DEG (two-Dimensional Electron Gas) layer (90) electrically connected in series with the electrode layer (42), the 2DEG layer (90) being provided in a second plane substantially parallel with the first plane and located at a predetermined distance, in a direction orthogonal to the first plane, from the first plane, the 2DEG layer (90) and the electrode layer (42) being patterned such that the electrode layer (42) overlays a part of the 2DEG layer (90), wherein the predetermined distance between the first plane and the second plane is selected to be sufficiently small for allowing electrostatic interaction between the electrode layer (42) and the 2DEG layer (90).