Michael Grätzel Born (1944-05-11) 11 May 1944 Dorfchemnitz, Sachsen Residence Switzerland Nationality Swiss Alma mater Freie Universität Berlin Known for Dye-sensitized solar cells Awards Harvey Prize (2007) Balzan Prize (2009) Millennium Technology Prize (2010) Albert Einstein World Award of Science (2012) Marcel Benoist Prize (2013) King Faisal International Prize (2015) Global Energy Prize (2017) Scientific career Fields photochemistry Institutions École Polytechnique Fédérale de Lausanne[1] Notable students Henry Snaith (postdoc)[2][3] Website lpi.epfl.ch/graetzel