[MOS] April 10, 2012

[Zina M Queen]

Modern Optics and Spectroscopy

>From electron transfer ton singlet fission:  exploiting molecular motions to control excited state energy conversion
Niels Damrauer,
University of Colorado

Tuesday, April 10, 2012
12:00-1:00pm

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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