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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Synthesis and characterization of single wall carbon nanotube-grafted poly(3-hexylthiophene) and their nanocomposites with gold nanoparticles

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Author(s):
de Freitas, Jilian N. [1] ; Maubane, Manoko S. [2, 3] ; Bepete, George [2, 3] ; van Otterlo, Willem A. L. [3, 4] ; Coville, Neil J. [2, 3] ; Nogueira, Ana F. [1]
Total Authors: 6
Affiliation:
[1] Univ Campinas UNICAMP, Inst Chem, Lab Nanotechnol & Solar Energy, BR-13083970 Campinas, SP - Brazil
[2] Univ Witwatersrand, DST NRF Ctr Excellence Strong Mat, ZA-2050 Johannesburg - South Africa
[3] Univ Witwatersrand, Sch Chem, Inst Mol Sci, ZA-2050 Johannesburg - South Africa
[4] Univ Stellenbosch, Dept Chem & Polymer Sci, ZA-7600 Stellenbosch, Western Cape - South Africa
Total Affiliations: 4
Document type: Journal article
Source: Synthetic Metals; v. 176, p. 55-64, JUL 15 2013.
Web of Science Citations: 8
Abstract

Single-wall carbon nanotubes (SWCNTs) were functionalized via the Prato reaction, by using a combination of N-methylglycine and 2-thiophenecarboxaldehyde (2T) or 3-thiophenecarboxaldehyde (3T). Pristine SWCNTs or functionalized SWCNTs were then reacted with 3-hexylthiophene (3HT) in the presence of FeCl3 to produce a composite (P3HT/SWCNT) or copolymers (P3HT-2T-SWCNT and P3HT-3T-SWCNT), containing 3-hexylthiophene units as the main chain and carbon nanotubes as side groups. After that, gold nanoparticles (AuNPs) were synthesized using a two-phase, one-pot reaction involving the reduction of HAuCl4 by NaBH4, in the presence of P3HT, P3HT/SWCNT, P3HT-2T-SWCNT or P3HT-3T-SWCNT. This approach generated nanocomposites where AuNPs were stabilized directly with P3HT or P3HT-containing SWCNTs. The characteristics of the ternary nanocomposites were investigated using UV-vis and fluorescence spectroscopy, thermogravimetric analysis, X-ray diffraction and high-resolution transmission electron microscopy. (c) 2013 Elsevier B.V. All rights reserved. (AU)

FAPESP's process: 09/15428-0 - Hybrid solar cells with inorganic nanoparticles: investigation of the role of nanoparticles and development of devices with higher efficiencies
Grantee:Jilian Nei de Freitas
Support type: Scholarships in Brazil - Post-Doctorate