Phonon interaction of electrons in the translation-invariant strong-coupling theory

A dependence of phonon interaction on the interelectronic distance is found for a translation-invariant (TI) strong-coupling bipolaron. It is shown that the charge induced by the electrons in a TI-bipolaron state is always greater than that in a bipolaron with spontaneously broken symmetry.

Highly electrically conductive polyethylenedioxythiophene thin films for thermoelectric applications

Enhanced PP-modified PEDOT:Tos based thermoelectrics present increased densities of the polaron state and stabilized densities of the bipolaron state.

Design and Synthesis of Dendrimers with Enhanced Two-Photon Absorption

ABSTRACTModel dendrimers based on bis-(diphenylamino)stilbene repeat units have been synthesized and shown to have very stable bipolaronic charge states. Calculations at the AM-1 level predict two orders magnitude enhancement in the third-order nonlinearity in going from the neutral to bipolaron state. Measurement of two-photon cross-sections for PPV dimers with attached diphenylamino donor groups show enhanced two-photon cross-sections for ns pulses. Preliminary evaluation of one of the model dendrimers indicates even larger two-photon cross-sections are possible.