I have prepared plenty of 3D figures for illustrative purposes. These images are rendered in POV-Ray.

MCBJ sample

This is also image #1 in google search for "MCBJ"

Nanogap in graphene

This was one field of our research

DNA-bridged nanoparticles

Prepared for the review article

Chiral carbon nanotube

 

Molecular junction

Used as a cover for my thesis

Porous nanoparticles