Platform for Graphene Sensors Using Printed Circuit Boards and Single Board Computers

A platform was designed to allow electrical measurements to be taken from graphene sensors. Research began with the characterization of a range of different sensors. Some sensors then had circuit boards designed to house them. The PCBs were designed to be connected to a Raspberry Pi, which could then supply voltage and read measurements using a MATLAB script. The boards were simulated in LTspice, while testing of the platform was done with a Graphenea GFET chip mounted on one of the boards and included a breadboard and resistor to create a voltage divider. Further experimentation was done on the use of acetone and paraffin wax to maintain the quality of the chip on the board over time. The results point to the wax having a stabilizing effect on the graphene, but another test with more samples and a longer time period is likely necessary.