Hetero-Functionalization of Carbon Nanotubes Termini with Single-Molecule Control
Weiying Hong1, Benjamin Lambert2, Zechariah Mengrani1
1Department of Chemistry, Queen Mary University of London, London, E1 4NS, UK.
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A strategy is presented for the asymmetric chemical functionalization of individual single-walled carbon nanotubes (SWCNTs) termini and their selective conjugation to distinct single moieties, i.e., the formation of bi-functionalized R-CNT-R' heterostructures. This study demonstrates this via the selective covalent attachment of metal nanoparticles (NPs) and semiconductor nanocrystals (quantum dots, QDs) at opposite ends of individual SWCNTs; the electronic coupling is further characterized between the distinct components of the hybrids. The general applicability of the methodology developed by this study can be beneficial for the design and development of novel SWCNT-based nanohybrid materials with single-molecule control.
