3. STM is a microscope that can image at the atomic level. STM uses an atomically sharp tip to scan the surface of a sample. It scans across the sample using a constant current between the tip and the surface to map out the topography of the sample at an atomic level. STM is being used to develop nanotechnology.
10. Why Failure? Too Much Current; I used 1nA of current which was too much for the Dibenzo[a,l]pentacene. Too much current made bumps on the surface, which I thought of molecules Silence; noisy sound occurs vibration Vacuum; less interference of air and sound Cool temperature; it helps surface settle down
11. How Can We Do To Change That? Use similar conditions to scan Dibenzo[a,l]pentacene Less Vibration Less Noisome Cool Temperature
12. What I Have Learned Large Tunneling Current vs. Small Tunneling Current What To Do If The Scope Does Not Work Properly/Not Approacing Vapor Deposit Annealing
