Wires and rods of gold (Au) have some very unique properties, due to the way in which electrons in them interact with light. Furthermore when these wires are arranged in a periodic manner, light bounces off them in a manner that is very sensitive to the incident angle. This provides an opportunity to make sensors out of these systems.
In this project, we explore several high and "low" tech (hence low cost) methods to make such structures. The highlight of this project is that we succeeded in coaxing gold particles to self-organize along lines! While our technology has its own limitations (incomplete coverage, and low quality of assembly), we are making progress for sure.
The high tech methods for making these structures involves use of electron and ion guns (literally!). By shooting electron and ions carefully, gold nanostructures with desired geometries have been carved out! For more details, please do contact me!
