Forthcoming Events

24.01.2018 - 26.01.2018, DESY Hamburg
04.02.2018 - 09.02.2018, Hotel Galvez, 2024 Seawall Boulevard, Galveston, TX, US
13.02.2018 - 15.02.2018, Hilton New Orleans Riverside in New Orleans, LA, USA

News

GAP-Biophotonics with Jean-Pierre Wolf-visited by the Grand Conseil of Geneva
ERC Consolidator Grant for Hans Jakob WörnerAttosecond X-ray spectroscopy of liquids ...
ERC Consolidator Grant for Fabrizio CarboneVisualizing the Conformational Dynamics of Proteins ...
Swiss national 'Future Day' offered children a glance into their possible professional futures
The world's shortest laser pulse- pulse duration of 43 attoseconds (Hans Jakob Wörner)
Sicherer durchs Gewitter fliegen- flying safely through lightning (Jean Pierre Wolf)
Successful Gender and Science Meeting 2017- 80 participants, lively discussions, and inspiring talks, news item on D-PHYS
ERC Starting Grant for Ulrich LorenzVisualizing the Conformational Dynamics of Proteins ...
Ambizione awards for three current and former MUST researchers- Axel Schild, Arianna Marchioro and Dmitry Momotenko
OSA - Women of Light: A Special Program for Women in Optics, with Ursula Keller

Shedding light on the absorption of light by titanium dioxide

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EPFL scientists have uncovered the hidden properties of titanium dioxide, one of the most promising materials for light-conversion technology.

Titanium dioxide (TiO2) is one of the most promising materials for photovoltaics and photocatalysis nowadays. This material appears in different crystalline forms, but the most attractive one for applications is called "anatase". Despite decades of studies on the conversion of the absorbed light into electrical charges in anatase TiO2, the very nature of its fundamental electronic and optical properties was still unknown. EPFL scientist Majed Chergui and his team, with national and international partners, have now shed light onto the problem by a combination of cutting-edge steady-state and ultrafast spectroscopic techniques, as well as theoretical calculations. The work is published in Nature Communications.

Baldini, E, L Chiodo, A Dominguez, M Palummo, S Moser, M Yazdi-Rizi, G Auböck, B P P Mallett, H Berger, A Magrez, C Bernhard, M Grioni, A Rubio, and M Chergui, Strongly bound excitons in anatase TiO2 single crystals and nanoparticles. Nature Communications, (2017) 8: 13 (10.1038/s41467-017-00016-6)


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