Hi everyone. Today, I did more than I planned to. I ran the 1 hour deposition through the IR. After looking through the spectra, I saw that the peaks were there but were very subtle after the sonication. This means that the monolayers were not as stable as I thought they were. I then threw those cobalt coupons away in the trash.
Next, I ran my 24 hour deposition that was rinsed through the IR. The peaks were still in the correct places which is a good thing. Also, the height of the peaks decreased. I then put these cobalt coupons in THF (tetrahydrofuren) and sonicated them for 15 minutes. They were put in the oven until I can look at them tomorrow.
Since my 1 hour deposition failed again, I decided to do it again. This time, I let the cobalt coupons sit on ice for 30 minutes and heated the ODPA. This way, when I deposit the cold coupons in the worm solution, the monolayers will immediately stick to the surface. I did the 1 hour deposition and then put the coupons in the oven. Hopefully the monolayers stay on this time.
Tomorrow, I plan to use the IR to see the results of my peaks for both the 1 hour and 24 hour depositions. I also want to rinse both of them but for different times. I will rinse the 1 hour deposition for 15 minutes and the 24 hour deposition for 30 minutes.