Conjugated excited state dynamics

Dykstra TE, Kovalevskij V, Yang X, Scholes GD (2005) Excited state dynamics of a conformationally disordered conjugated polymer a comparison of solutions and film. Chem Phys 318 21... 

The excited state pattern of a conjugated polymer/fullerene composite is shown in Fig. 1.16. First, the dynamics of pure MDMO PPV excited by a sub-10-fs pulse is compared with the dynamics of MDMO PPV/PCBM... 

We Initiate here the microscopic description of PDA within the ir-electron framework of Parlser-Parr-Pople (PPP) theory. Quite aside from the crystallinity and Interesting nonlinear optical properties of PDAs, we are convinced that related it-electron descriptions should apply to PA, PDA, and other conjugated polymers. Furthermore, the nature of the low-lying excited states of polymers Is a prerequisite for understanding their relaxation and dynamics. In sharp contrast to ir-electron models, a more realistic treatment of triple bonds leads to Important and previously overlooked Coulomb correlations. We focus below on the novel aspects of excitations In ene-yne systems. 

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