Hello Everyone! My fourth week a
t the University of Houston has come to an end. This has been my favorite week so far. For work, I continued making films and working on the four-point probe. I also set up a simple and crude laser to measure the roughness of the copper samples. It works by bouncing a laser off the sample, where it is reflected to a photodiode. If the sample is rougher, the laser will be slightly more scattered and spread out. When it then passes through the iris, the scattered light will be blocked, meaning that a rougher sample leads to less light reaching the photodiode. This allows us to be able to measure the roughness of the thin film by the given voltage from the photodiode. It was very fun to try and align the laser and build it. However, my setup is very crude and is not completely accurate. My four-point probe has still been giving lots of trouble, and I have no clue why. I have tried to test its measurements with commonly known resistivity measurements, but it is way off. Additionally, on Friday, I gave a presentation on everything that I have done to the whole research group. I think it went well, but the organization of my presentation was terrible.
I hope everyone had a wonderful 4th of July. I went to Hermann Park to watch the fireworks with the rest of the kids here. I had so much fun running around and hanging out with everyone. Then Today We all w
ent to the Museum district. My friend and I went to the Houston Museum of Natural Science. We spent 3 hours walking around in the museum and I am so tired, but it was so much fun. There were like a hundred exhibits and interactive games. One of the coolest museums I’ve been to. Sadly, next week is my last week here, but I know that it will be so much fun.
The featured image is me, the other kids, and our RA at Hermann Park on the 4th of July.
There are no comments published yet.