Electronic Properties of Semiconducting Polymer-Functionalized Single Wall Carbon Nanotubes

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• 作者：Souzana N. Kourkouli ; Angeliki Siokou ; Andreas A. Stefopoulos ; Fotini Ravani ; Thomas Plocke ; Matthias M眉ller ; Janina Maultzsch ; Christian Thomsen ; Kostas Papagelis ; Joannis K. Kallitsis
• 刊名：Macromolecules
• 出版年：2013
• 出版时间：April 9, 2013
• 年：2013
• 卷：46
• 期：7
• 页码：2590-2598
• 全文大小：519K
• 年卷期：v.46,no.7(April 9, 2013)
• ISSN：1520-5835

文摘

New hybrid materials were synthesized by functionalizing single wall carbon nanotubes (SWCNTs) with different semiconducting species. Vinyl quinoline monomers bearing electron accepting groups or even its ruthenium complex were used as organic semiconductors. UV鈥搗is鈥揘IR absorption spectroscopy, X-ray photoelectron spectroscopy and thermogravimetric analysis were used in order to qualify the resulted materials. Optical characteristics were studied by photoluminescence spectroscopy in neutral and acidic media. The electronic structure of the valence band and the surface electronic properties of the materials in the form of thin films developed on Si substrates were studied by ultraviolet photoelectron spectroscopy. Raman spectroscopy revealed the charge transfer mechanism between the polymer and the carbon nanotube while the recorded Raman resonance profiles showed significant changes in the transition energies and the widths of the resonance windows due to chemical modification of SWCNTs.