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Proceedings Paper

Effect of molecular weight on the vibronic structure of a diketopyrrolopyrrole polymer
Author(s): Sophia C. Hayes; Galatia Pieridou; Michelle Vezie; Sheridan Few; Hugo Bronstein; Iain Meager; Iain McCulloch; Jenny Nelson
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Paper Abstract

Resonance Raman Spectroscopy (RRS) is employed in this study to examine the influence of molecular weight on the optical response of a diketopyrrolopyrrole polymer (DPP-TT-T) in solution. The vibronic structure observed for the ground state absorption of this polymer is found to vary with molecular weight and solvent. Resonance Raman Intensity Analysis (RRIA) revealed that the absorption spectra can be described by at least two dipole-allowed transitions and the vibronic structure variation is due to differing contributions from linear and curved segments of the polymer.

Paper Details

Date Published: 26 September 2016
PDF: 8 pages
Proc. SPIE 9923, Physical Chemistry of Interfaces and Nanomaterials XV, 99230N (26 September 2016); doi: 10.1117/12.2238123
Show Author Affiliations
Sophia C. Hayes, Univ. of Cyprus (Cyprus)
Galatia Pieridou, Univ. of Cyprus (Cyprus)
Michelle Vezie, Imperial College London (United Kingdom)
Sheridan Few, Imperial College London (United Kingdom)
Hugo Bronstein, Imperial College London (United Kingdom)
Univ. College London (United Kingdom)
Iain Meager, Imperial College London (United Kingdom)
Iain McCulloch, Imperial College London (United Kingdom)
King Abdullah Univ. of Science and Technology (Saudi Arabia)
Jenny Nelson, Imperial College London (United Kingdom)

Published in SPIE Proceedings Vol. 9923:
Physical Chemistry of Interfaces and Nanomaterials XV
Artem A. Bakulin; Robert Lovrincic; Natalie Banerji, Editor(s)

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