Discovery Sagaサイレントキーワード俯瞰

Due to delays in the setup of the transfer station to fabricate the van der Waals channels, we could not yet fabricate any channels.
However, we have now setup the transfer station in a cleanroom and most of the required instruments for fabrication are now available and in place. The transfer station allows for 3D manipulation of 2D graphene and hexagonal boron nitride flakes, the stage can be heated and cooled down and it includes a vacuum sample holding area.
Concerning the measurement part, we have now received and prepare the Molecular Device Axopatch 200B for high precision current measurement (100 fA sensitivity).
We also finished the design of the fluidic cell that will allow to connect millimetric tubes to the membranes supporting the angstrom-scale channels. It consists of two PEEK plastic pieces with a precise shape which has the exact dimensions of the silicon wafer on which a Silicon Nitride window is formed. The channels are built on the silicon nitride window, and the silicon wafer is sandwiched between the two PEEK parts which are then held together by a threading fitted into another plastic piece. Two o-rings on each side of the silicon chip avoid leakage. We will soon fabricate the cell in order to be able to do measurements.