The effect of intermolecular interaction on excited states in p - DTS(FBTTH2)2

The Journal of Chemical Physics
Markus ReichenbergerAnna Köhler

Abstract

Using optical spectroscopy in solution and thin film, and supported by quantum chemical calculations, we investigated the aggregation process of the donor-acceptor type molecule p - DTS(FBTTH2)2. We demonstrate that cooling a solution induces a disorder-order phase transition that proceeds in three stages analogous to the steps observed in semi-rigid conjugated polymers. By analyzing the spectra, we are able to identify the spectral signature of monomer and aggregate in absorption and emission. From this we find that in films, the fraction of aggregates is near 100% which is in contrast to films made from semi-rigid conjugated polymers.

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Citations

Dec 15, 2016·The Journal of Physical Chemistry Letters·Fabian PanzerAnna Köhler
Mar 31, 2017·ACS Applied Materials & Interfaces·Yun LongIfor D W Samuel
Jul 1, 2020·Chemistry : a European Journal·Baocai DuTao Wang
Apr 3, 2018·The Journal of Physical Chemistry. C, Nanomaterials and Interfaces·Stuart A J ThomsonOleg G Poluektov
Sep 12, 2018·The Journal of Physical Chemistry. B·Axel BourdickStephan Gekle
Oct 24, 2020·The Journal of Physical Chemistry Letters·Stefan WedlerAnna Köhler

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