X-ray Raman scattering study of aligned polyfluorene

Details X-ray Raman scattering study of aligned polyfluorene X-ray Raman scattering study of aligned polyfluorene

2006-08-29

arxiv.org/abs/cond-mat/0608623v1

Physics

Condensed Matter

Soft Condensed Matter

19 pages, 8 figures

Scientific paper

10.1021/ma060823u

We present a non-resonant inelastic x-ray scattering study at the carbon K-edge on aligned poly[9,9-bis(2-ethylhexyl)-fluorene-2,7-diyl] and show that the x-ray Raman scattering technique can be used as a practical alternative to x-ray absorption measurements. We demonstrate that this novel method can be applied to studies on aligned $\pi$-conjugated polymers complementing diffraction and optical studies. Combining the experimental data and a very recently proposed theoretical scheme we demonstrate a unique property of x-ray Raman scattering by performing the symmetry decomposition on the density of unoccupied electronic states into $s$- and $p$-type symmetry contributions.

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