Journal
CHEMISTRY OF MATERIALS
Volume 25, Issue 13, Pages 2700-2707Publisher
AMER CHEMICAL SOC
DOI: 10.1021/cm401312v
Keywords
carbon nanotubes; functionalization; polymerization in micelles; photoinduced energy transfer
Funding
- ANR [f-DNA ANR-09-NANO-005-01, TRANCHANT-ANR 2010 BLAN 1009 4]
- Region Ile-de-France
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The fabrication of tailor-made functional hybrid materials that preserve and combine the properties of their building blocks is a central issue of nanosciences. In particular, the development of efficient techniques for the functionalization of carbon-based nanomaterials preserving their exceptional quality, while robustly enriching their. functionalities (in particular their optical properties), is highly desirable for demanding applications. In this work, we describe a new method of functionalization of carbon nanotubes which combines most advantages of both covalent and noncovalent methods without their principal drawbacks. Our method is based on the controlled polymerization of hydrophobic molecules on nanotubes dispersed in micelles. This approach permits us to obtain carbon nanotube hybrids exhibiting high stability while preserving their pi-conjugated system responsible for their outstanding optical and electrical properties. The nanotube hybrids can be purified, manipulated, and dispersed in various solvents without loss of their functionality. Extensive characterizations based on optical and microscopic measurements demonstrate the strength of this method for designing new functional materials.
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