Journal
PHYSICA STATUS SOLIDI C: CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 9, NO 7
Volume 9, Issue 7, Pages 1546-1550Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssc.201100540
Keywords
P3HT; nanofibres; quantum dots; nanocomposites
Funding
- IMAGIC (IMAGing Integrated Components), an institute centre of excellence led by Acreo and ECOC Foundation
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Poly-(3-hexylthiophene) (P3HT) has been applied in many fields such as organic solar cells, printed electronic circuits, due to superior semiconducting properties compared to other semiconducting polymers. The presence of p-p interaction causes regio-regular P3HT to form ordered lamellar stacks during crystallisation. Here we report a simple room temperature, solution based method to synthesise P3HT nanofibres with controllable sizes. Our method is based on differing solubility of P3HT in various solvents. In a mixed solvent environment, we could control the precipitation of P3HT to obtain nanofibres with various diameters by varying the ratios of the solvents. We found that the lengths of the nanofibres could be controlled with concentration of the solution. Other methods to obtain nanofibres of P3HT invariably involves heating and controlled cooling which makes reproducibility and morphology control difficult. Furthermore, we synthesised a nanocomposite consisting of P3HT nanofibres and quasi-type-II quantum dots and evaluated the photoelectric properties of the nanofibres as well as the nanocomposites using interdigitated gold microelectrodes. [GRAPHICS] (C) 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
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