Saman Jafari

Saman Jafari received his bachelor’s degree in “Materials Science and Engineering – Industrial Metallurgy” from Shiraz university, Iran. He then got his masters from Sharif University of Technology in “Materials Characterization and Selection”. His master’s thesis was about “Effect of c morphology and carbon and nitrogen co-doping on Titanium dioxide’s photocatalytic activity”. He is now a first year, PhD student at University of New South Wales, School of Photovoltaic and Renewable Energy Engineering. His interests are silicon-based solar cells, lifetime measurements, defect characterization and their effect on recombination properties of silicon wafers.

The area he works on is measurement of silicon defect parameters using lifetime measurement, with the help pf Shockley-Read-Hall theory. There are several impurities and defect in silicon that has not been characterized deeply using lifetime techniques. Such characterization shows the main defects which are highly active in carrier recombination even if their concentration is so low. On the other hand, he also works on gettering of impurities such as copper from silicon bulk to increase the carriers’ lifetime and reduce light induced degradation.