Size-tuneable synthesis of photoconducting poly-(3-hexylthiophene) nanofibres and nanocomposites
2012 (English)In: Physica Status Solidi. C, Current topics in solid state physics, ISSN 1610-1634, E-ISSN 1610-1642, Vol. 9, no 7, 1546-1550 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2012. Vol. 9, no 7, 1546-1550 p.
P3HT, nanofibres, quantum dots, nanocomposites
IdentifiersURN: urn:nbn:se:kth:diva-95407DOI: 10.1002/pssc.201100540ISI: 000306479300006ScopusID: 2-s2.0-84863997565OAI: oai:DiVA.org:kth-95407DiVA: diva2:528156
16th International Semiconducting and Insulating Materials Conference (SIMC-XVI) Location: Royal Inst Technol (KTH), Stockholm, Sweden Date: JUN 19-23, 2011
QC 201212212012-05-242012-05-242016-05-19Bibliographically approved