Title data
Singh, Chetan R. ; Gupta, Gaurav ; Lohwasser, Ruth H. ; Engmann, Sebastian ; Balko, Jens ; Thelakkat, Mukundan ; Thurn-Albrecht, Thomas ; Hoppe, Harald:
Correlation of charge transport with structural order in highly ordered melt-crystallized poly(3-hexylthiophene) thin films.
In: Journal of Polymer Science Part B: Polymer Physics.
Vol. 51
(2013)
Issue 12
.
- pp. 943-951.
ISSN 1099-0488
DOI: https://doi.org/10.1002/polb.23297
Project information
Project financing: |
Deutsche Forschungsgemeinschaft |
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Abstract in another language
A series of well-defined poly(3-hexylthiophene)s (P3HT) of different molecular weight (MW) and high regioregularity was investigated for charge transport properties in as-cast and melt-crystallized films. The semicrystalline structure of the P3HT was characterized by X-ray scattering and Atomic force microscopy. Crystallization by cooling from the melt led to a substantial increase in crystallinity and a stronger alignment of the crystals in comparison to as-cast films. The increase in crystallinity went along with an increase in hole mobility of up to an order of magnitude as measured by the space charge limited current method. Additionally, the hole mobility depended on the long period of P3HT lamellae and consequently on the MW. In compliance with the long period, the charge carrier mobility first increased with the MW before decreasing again at the onset of chain folding.
Further data
Item Type: | Article in a journal |
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Refereed: | Yes |
Institutions of the University: | Faculties Faculties > Faculty of Biology, Chemistry and Earth Sciences Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry I Profile Fields Profile Fields > Emerging Fields Profile Fields > Emerging Fields > Energy Research and Energy Technology Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Professor Applied Functional Polymers > Professor Applied Functional Polymers - Univ.-Prof. Dr. Mukundan Thelakkat Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Professor Applied Functional Polymers |
Result of work at the UBT: | Yes |
DDC Subjects: | 500 Science > 540 Chemistry |
Date Deposited: | 12 Apr 2016 09:02 |
Last Modified: | 21 Jul 2016 07:12 |
URI: | https://eref.uni-bayreuth.de/id/eprint/1171 |