This week, we been transferring and preparing more samples of graphene and annealing them to test them and follow with our comparisons of their results.
Another thing we did is install a humidity sensor in the conductivity set up that we did. The process of install this sensor was a little hard for me and my lab partner because we do not know too much about coding and our mentor was doing all the coding and we help him to connect the cables of the sensor to the arduino. We install this sensor because humidity is an important factor in the doping of graphene, the humidity make a change in the doping type of the graphene because it release ions in the surface of graphene and they act like electrons and affects the electron mobility. This sensor will allow us to know the humidity and the temperature that is in the environment of where we are testing our samples.
Confuctivity set-up
Silicon samples without graphene
We also were working in a presentation that we need to do on the final week of the program, and we did a PowerPoint and we been practicing our presentation.
This week I spent most of the time practicing my presentation with my lab partner.
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