We started preparing a solution of 10% phosphoric acid and 90% Deionized water.
After that we used this solution to eliminate the aluminum dioxide from the back side of the sample to apply electric current there. The reason why we put the aluminum dioxide is because we are trying to keep the doping type of our graphene which is in the from side of the samples. When graphene is exposed to the environment it tends to change its doping type.
Process how we put the phosphoric acid.
After we did that, we began changing the cables of a circuit of an arduino. We change those cables when we did the tests. There was a little bit of noise. The new cable we put was insolarte from the outside to avoid the noise in the tests. Also our mentor was teaching us the process to convert solar energy in electric energy and how the graphene can be useful in this.
Also we did a lot of tests of the capacitance of our samples and I learn how it is measured and how it is important to know.
Silicon wafers with phosphoric acid in the back side.
Outside of the lab I went to swim at the beach and have fun with my friends.
I been learning a lot of things about this project, I am enjoying it.
La Jolla shores
There are no comments published yet.