Presentation Date:
Friday, April 15, 2011
Location:
Hyperdoping Research Meetup, MIT (Cambridge, MA)
Presentation Slides:
We present a novel method for producing TiO2 through femtosecond-laser processing titanium in the presence of oxygen. The process produces laser-induced periodic surface structures that are consistent with previous work done on titanium. We compare how the surface morphology and composition vary with gas composition and laser parameters. Using x-ray photoelectron and Raman spectroscopy, we will show that chemical selectivity plays an important role in hyperdoping titanium. With this method, we hope to introduce dopants, such as chromium and nitrogen, into the lattice for visible light catalysis. Our research presents an innovative approach to producing structured TiO2 that can be used in a variety of applications, including solar harvesting and water splitting.