Optical Sciences

Biomolecules and nanostructures

The Optical Sciences group studies the interaction of light and matter. Our current focus is on detection and sensing/imaging with an emphasis on the development of integrated photonics. We are part of Twente University's Department of Science and Technology and member of the MESA+ institute.

 

Peripheral ligands as electron storage reservoirs and their role in enhancement of photocatalytic hydrogen generation

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Qing Pan, Leon Freitag, Tanja Kowacs, Jane C. Falgenhauer, Jeroen P. Korterik, Derck Schlettwein, Wesley R. Browne, Mary T. Pryce, Sven Rau, Leticia González, Johannes G. Vos and Annemarie Huijser
Chemical Communications
june 27, 2016 vol. 52, p.9371-9374
doi:10.1039/C6CC05222C

The contrasting early-time photodynamics of two related Ru/Pt catalysts with very different photocatalytic H2 generation capabilities are reported. Ultrafast equilibration (535 +/- 17 fs) creates an electron reservoir on the peripheral ligands of the ester substituted complex, resulting in a dramatic increase in photocatalytic performance. The insights gained open the way towards a novel design strategy for H2 generating molecular photocatalysts.
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