. . . . . . . "Michael Gr\u00E4tzel"@en . . . "Swiss chemist" . "Michael Gr\u00E4tzel (born 11 May 1944, in Dorfchemnitz, Saxony, Germany) is a professor at the \u00C9cole Polytechnique F\u00E9d\u00E9rale 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."@en . . . "1944Z"^^ . . "Gratzel, Michael"@en . "1944-05-11Z"^^ . . . .