84 research outputs found
Direct evidence of the failure of electric-dipole approximation in second-harmonic generation from a chiral polymer film
Full text linkCircular Dichroism and Circular Polarization of Photoluminescence of Highly Ordered Poly{3,4-di[( S
Full text linkDopant-induced crossover from 1D to 3D charge transport in conjugated polymers
Get PDFThe interplay between inter- and intra-chain charge transport in bulk
polythiophene in the hopping regime has been clarified by studying the
conductivity as a function of frequency (up to 3 THz), temperature and doping
level. We present a model which quantitatively explains the observed crossover
from quasi-one-dimensional transport to three-dimensional hopping conduction
with increasing doping level. At high frequencies the conductivity is dominated
by charge transport on one-dimensional conducting chains.Comment: 4 pages, 2 figure
Dark States in Ionic Oligothiophene Bioprobes—Evidence from Fluorescence Correlation Spectroscopy and Dynamic Light Scattering
Full text linkPrinciples of “Majority Rules” and “Sergeants and Soldiers” Applied to the Aggregation of Optically Active Polythiophenes: Evidence for a Multichain Phenomenon
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Effect of dye doping on the charge carrier balance in PPV light emitting diodes as measured by admittance spectroscopy
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