Question

1. Why is a vacuum necessary in a nanoparticle beam source based on supersaturated vapor?

2. What are magic numbers as applied to atomic packing?

3. What do all three methods of synthesizing single-walled nanotubes have in common?

4. What is the difference between negative resist and positive resist in regards to electron beam lithography?

5. How does a scanning tunneling microscope enable atoms and molecules to be manipulated?

Answer 1