Dr. Oliver Schultz-Wittmann

Oliver Schultz-Wittmann has started with photovoltaics in 1998. During his career, he worked on multiple aspects of crystalline silicon solar cell technology. At the Fraunhofer ISE institute, one of the world’s most prominent research institutes in the photovoltaic field, he developed the world’s first multi-crystalline cell with an efficiency of more than 20%, a world record that had been for valid for 10 years (2004- 2014). Dr Schultz-Wittmann was the head of the High-Efficiency Silicon Solar Cell development group at Fraunhofer ISE before he left for Silicon Valley, California, in 2008. In 2009 he was a co-founder of a start-up company called TetraSun. TetraSun developed cost-effective high-efficiency crystalline silicon solar cells and modules from abundant resources and merged with FirstSolar in 2013. The technology is now in mass production and employed on a global scale.