Tag: strange shapes
Strange sphere
by Mikhail Ladanov on May.25, 2010, under SEM pictures
This is just some strange looking sphere, probably ZnO, that I bumped into while investigating one of my samples.
The Hedgehog
by Mikhail Ladanov on May.25, 2010, under SEM pictures
This is a cluster of ZnO nanowires. For ZnO NW to grow one generally need to create a seeding layer consisting of nanocrystalline ZnO. It can be done by depositing solution of zinc acetate in ethanol and annealing substrate at 300°C. If there is a particle on the surface of the substrate, surface tension can draw the solution to this particle, leaving area around without any seeding layer. In my opinion this “hedgehog” was formed around such a particle, while the area around it is without any ZnO NW. there are nanwires of expected shape and geometry father away from this structure.
ZnO nanowires
by Mikhail Ladanov on Mar.15, 2010, under SEM pictures
I was trying to grow ZnO nanowires using a new set up, but apparently messed up somewhere putting the seeding layer on the surface. In this picture, as far as I can tell, ZnO nanowires grew around a ZnO nanocrystall. Though the form and the shape of nanowires are what I was looking for, I’d rather have them growing from the susbtrate.
ZnO nanostructures
by Mikhail Ladanov on Feb.10, 2010, under SEM pictures
Strangely shaped ZnO nanostructures grown by wet chemistry.
Flowers are growing here
by Mikhail Ladanov on Feb.10, 2010, under SEM pictures
