Tuesday, April 29, 2014 - 10:30pm

 

Title:
Excited State Dynamics of Conjugated Molecules.

Abstract:
pi-conjugated macromolecules and polymers are versatile materials with unique physical properties useful for light-harvesting and energy transport. In solution, conjugated chains and chromophores are not frozen in one conformation, instead they have a proclivity to twist, coil and aggregate. In addition, nearby chromophores can be strongly coupled resulting in different degrees of pi-electron delocalization depending on the planarity of the conjugated segments within an isolated chain.  We use time-resolved spectroscopy and non-adiabatic molecular dynamics simulations including several coupled electronic excited states to gain understanding on the excited state dynamics and energy transfer in pi-conjugated materials.

Speaker: 

Prof Valeria Kleiman

Institution: 

U of Florida

Location: 

RH 104