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Smaranda, I., Baibarac, M., Ilie, M., Matea, A., Baltog, I. & Lefrant, S. (2015) Optical Properties of Single-Walled Carbon Nanotubes Functionalized with Poly(2,2 '-bithiophene-co-pyrene) Copolymer. Curr. Org. Chem. 19 652–661. 
Added by: Laurent Cournède (2016-03-10 18:36:42)
Type de référence: Article
Numéro d'identification (ISBN etc.): 1385-2728
Clé BibTeX: Smaranda2015
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Catégories: PMN
Mots-clés: anti-stokes, carbon nanotubes, Conductivity, electrochemical polymerization, functionalization, Interface, photoluminescence, polyethylene-glycol oligomer, polythiophene, pyrene, raman-scattering, thin-films, trifluoride diethyl etherate, trifluoroacetic-acid, vibrational properties
Créateurs: Baibarac, Baltog, Ilie, Lefrant, Matea, Smaranda
Collection: Curr. Org. Chem.
Consultations : 1/552
Indice de consultation : 4%
Indice de popularité : 1%
The photoluminescent (PL) properties of composites based on single-walled carbon nanotubes (SWNTs) and poly(2,2'-bithiophene-co-pyrene) (PBTh-Py), prepared by in situ chemical polymerization of the two monomers in the presence of carbon nanotubes, are reported. We demonstrate that the functionalization of SWNTs with PBTh-Py copolymer is revealed through a gradual quenching process of PL with the increase of SWNT content (semiconducting component) in the composite mass. FTIR spectroscopy indicates the existence of several steric hindrance effects that originate in the covalent functionalization of SWNTs with PBTh-Py copolymer. The film deposition of PBTh-Py copolymer and PBTh-Py/SWNTs composite onto rough Au supports induces changes in the FTIR spectrum, which originate in an adsorption mechanism caused by the preferential orientation of molecules on the metallic support. Surface-enhanced Raman scattering (SERS) spectroscopy reveals the side-wall functionalization of SWNTs with PBTh-Py copolymer by changes in the shapes, peak position and relative intensities of different Raman lines.
Added by: Laurent Cournède  
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