Surface structure plays a role in advanced technology. For instance, using the structure of S atoms
on a Ni surface, engineers at American Superconductor have improved the performance of
second generation superconducting wire.
Here is more information on the crystal planes of semiconductors.
3D solid-state crystal models can be found here.
Porous solids can be formed by etching. Learn more about etching to produce porous silicon here.
Learn more about porous silicon at this link from the lab of Mike Sailor at UC San Diego.
Center for Atomic-scale Material Design
The Lundbeck Foundation's Center for Atomic-scale Materials Design aims at developing
electronic structure theory to understand the properties of materials and use the insight to design new functional nanostructures.
The NIST Surface Structure Database is available here.