Tag: Au
Microspheres lithography
by Mikhail Ladanov on Feb.10, 2010, under SEM pictures
If one needs a periodic pattern of metallic nanoislands, and size of interest is too small for easy and conventional lithography, microspheres lithography can be used. The idea is very simple – deposit a Self-Assembling Monolayer (SAM) of polystyrene spheres…
…evaporate metal on top…
…and wash these spheres away by sonication in toluene.
What’s left will be triangle periodic nanoislands. Density of which can be controlled by size of the spheres.
Melted Au nanoparticles on Si surface
by Mikhail Ladanov on Feb.10, 2010, under SEM pictures
Au nanoparticles were seeded on Si surfaced and annealed just below gold melting temperature in low vacuum for 30 minutes to get these Au droplets. They droplets can be used as catalyst for nanostractures growth with controlled density.
