This work was supported by the National Research Laboratory Program of the Korea Science & Engineering Foundation (KOSEF), the Center for Nanoscale Mechatronics & Manufacturing (CNMM), and the Blue Ocean Program of Small and Medium Business Administration. We thank Dr. Dan Zhao in the Department of Material Sciences and Engineering at KAIST for helpful discussions. Supporting Information is available online from Wiley InterScience or from the authors.
Effect of SWNT Defects on the Electron Transfer Properties in P3HT/SWNT Hybrid Materials†
Article first published online: 1 AUG 2008
Copyright © 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Advanced Functional Materials
Volume 18, Issue 18, pages 2659–2665, September 23, 2008
How to Cite
Geng, J., Kong, B.-S., Yang, S. B., Youn, S. C., Park, S., Joo, T. and Jung, H.-T. (2008), Effect of SWNT Defects on the Electron Transfer Properties in P3HT/SWNT Hybrid Materials. Adv. Funct. Mater., 18: 2659–2665. doi: 10.1002/adfm.200800496
- Issue published online: 16 SEP 2008
- Article first published online: 1 AUG 2008
- Manuscript Revised: 31 MAY 2008
- Manuscript Received: 10 APR 2008
- carbon nanotubes;
- conjugated polymers;
- hybrid materials;
Poly(3-hexylthiophene) (P3HT) hybrids with single-walled carbon nanotubes (SWNTs) were prepared using a series of SWNTs with various defect contents on their surfaces. The hybrids were synthesized by exploiting the π–π interaction between P3HT and the SWNTs, resulting in efficient dispersion of the carbon nanotubes in the P3HT solution. UV-visible and photoluminescence (PL) spectra showed that the carbon nanotubes quench the PL of P3HT in the hybrids, indicating that electron transfer occurs from photo-excited P3HT to the SWNTs. This electron transfer from P3HT to carbon nanotubes was disrupted by the presence of defects on the SWNT surfaces. However, the PL lifetime of P3HT in the hybrids was found to be the same as that of pure P3HT in solution, indicating the formation of a ground-state non-fluorescent complex of P3HT/SWNTs.