Week+of+Nov+9-13

Week of Nov 9-13

11th of November

I went to the lab for 2 hours and 15 minutes, but I didn't get any good images. The scope was very drifty and the tip kept crashing when I approached so I tried messing with the feedback and making sure that there was good contace with the sample. I also changed the tip multiple times, but I could not seem to get a good image. I only was able to get to partial scans because of the amount of drift. Also just from my observation the room that I was scanning was very hot and humid even though it wasn't hot out.

13th of November

Today Becky gave me and Robby allowed us to ask questions about STM and she also went over both SL and my projects explaining where we intend to go with our projects. I didn't get got about ten minutes of scans after this discussion. We also discussed the future overlap of SL and my projects. SL is studying self-assorting monolayers ( and is currently looking at dibenzoal pentacene) I in the future will be scanning these self- assorting monolayers also and in shooting the laser at the sample will attempt to change the way the molecules on the surface line up. If the molecules when they are shot with the laser line up then we may be able to run a signal across this line of molecules. We also dicussed the difference between STM and AFM which I already new because I had learned this during the summer, but going over it more just allowed it to be further engrained into my brain. The top images are copies of the diagrams I copied from Beckys lesson.

Return to Logbook