Effect of molecular weight on the vibronic structure of a diketopyrrolopyrrole polymer
Ημερομηνία
2016Συγγραφέας
Hayes, Sophia C.
Pieridou, Galatia K.
Vezie, M.
Few, S.
Bronstein, H.
Meager, I.
McCulloch, I.
Nelson, J.
ISBN
978-1-5106-0237-3Εκδότης
SPIESource
Proceedings of SPIE - The International Society for Optical EngineeringPhysical Chemistry of Interfaces and Nanomaterials XV
Volume
9923Google Scholar check
Keyword(s):
Metadata
Εμφάνιση πλήρους εγγραφήςΕπιτομή
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. © 2016 SPIE.