[MOS] TODAY April 10, 2012 Niels Damrauer

[Zina M Queen]

Modern Optics and Spectroscopy

>From electron transfer to single fission:  exploiting molecular motions to control excited state energy conversion

Niels Damrauer,
University of Colorado
Tuesday, April 10, 2012
12:00-1:00p.m.

The Damrauer group is broadly interested in controlling photochemical transformations by exploiting nuclear degrees of freedom to alter electronic coupling and reorganization energy between reactants and products. We approach this in our efforts to manipulate excited-state dynamics using adaptively and rationally phase-shaped broadband laser fields as well as in our design of chromophores for visible-light driven electron transfer photochemistry. In this talk I will highlight efforts to interrogate and control photochemical pathways in novel coordination complexes wherein internal motions modulate rates of electron transfer reactions and corresponding energy wasting back-reactions. I will also discuss efforts to use laser-pulse phase and adaptive femtosecond pulse shaping methods to manipulate photoproduct formation in polyacene films believed to participate in singlet fission reactions. Such materials are important candidates for third-generation solar cell materials.

Grier Room, MIT Bldg 34-401
Refreshments served after the lecture
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