Portal:Energy/Selected biography/17
![](http://upload.wikimedia.org/wikipedia/commons/thumb/0/09/Michael_Gr%C3%A4tzel.jpg/220px-Michael_Gr%C3%A4tzel.jpg)
Michael Grätzel (born 11 May 1944, in Dorfchemnitz, Saxony, Germany) is a professor at the École Polytechnique Fédérale de Lausanne where he directs the Laboratory of Photonics and Interfaces. He pioneered research on energy and electron transfer reactions in mesoscopic-materials and their optoelectronic applications. He co-invented with Brian O'Regan the Grätzel cell in 1988.
Graetzel is the author of over 1000 publications, two books and inventor or co-inventor of over 80 patents, he has been the Mary Upton Visiting Professor at Cornell University and a distinguished visiting professor at the National University of Singapore, and is currently a distinguished scientist at King Abdulaziz University. He was an invited professor at the University of California, Berkeley, the École normale supérieure Paris-Saclay and Delft University of Technology. (Full article...)