Effect of molecular weight on the vibronic structure of a diketopyrrolopyrrole polymer
| Autor: | Hayes, Sophia C., Pieridou, Galatia K., Vezie, M., Few, S., Bronstein, H., Meager, I., McCulloch, I., Nelson, J. |
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| Přispěvatelé: | Lovrincic R., Bakulin A.A., Banerji, N., Hayes, Sophia C. [0000-0002-2809-6193] |
| Rok vydání: | 2016 |
| Předmět: |
Resonance Raman
Materials science Absorption spectroscopy Ground state Resonance Raman spectroscopy 02 engineering and technology Conjugated polymers 010402 general chemistry 01 natural sciences Resonance Molecular weight symbols.namesake Dipole-allowed transitions Vibronic spectroscopy Absorption (electromagnetic radiation) chemistry.chemical_classification DPP-TT-T Optical response Conjugated polymer Polymer Nanostructured materials 021001 nanoscience & nanotechnology Diketopyrrolopyrroles Surface chemistry 0104 chemical sciences Condensed Matter::Soft Condensed Matter chemistry Ground state absorption Physical chemistry Raman spectroscopy symbols 0210 nano-technology Vibronic structure |
| Zdroj: | Proceedings of SPIE-The International Society for Optical Engineering Physical Chemistry of Interfaces and Nanomaterials XV |
| Popis: | 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. 9923 Sponsors: The Society of Photo-Optical Instrumentation Engineers (SPIE) Conference code: 125526 |
| Databáze: | OpenAIRE |
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