We have used continuous wave photoinduced absorption (PIA) to probe the (spin- 1/2 ) polaron and (spin-1) triplet excitations in bulk poly(para-phenylene vinylene) (PPV) films and isolated PPV chains incorporated into a self-assembled matrix ordered at the nanometer scale (nano-PPV). The ordering is a result of the lyotropic liquid crystalline character of the matrix material. We investigated the influence of the chain isolation on the transition energies and the effect of the resulting one-dimensionality on the excitation dynamics.
Photophysical studies on nanostructured PPV-systems
Gadermaier, C.;
2000-01-01
Abstract
We have used continuous wave photoinduced absorption (PIA) to probe the (spin- 1/2 ) polaron and (spin-1) triplet excitations in bulk poly(para-phenylene vinylene) (PPV) films and isolated PPV chains incorporated into a self-assembled matrix ordered at the nanometer scale (nano-PPV). The ordering is a result of the lyotropic liquid crystalline character of the matrix material. We investigated the influence of the chain isolation on the transition energies and the effect of the resulting one-dimensionality on the excitation dynamics.File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
