Mark Widmar is the current CEO of First Solar, Inc., having been appointed to this role in 2016. He joined First Solar in 2011 as Chief Financial Officer and has played a crucial role in the company's strategic initiatives and growth. Under his leadership, First Solar has focused on expanding its manufacturing capacity and technological advancements, particularly in thin-film photovoltaic technology. 

First Solar is known for its thin-film photovoltaic technology, primarily using cadmium telluride (CdTe) as the semiconductor material. This technology differentiates it from many competitors who use silicon-based solar panels.

The thin-film technology offers advantages such as lower manufacturing costs, better performance in high temperatures, and less sensitivity to shading.