A novel strategy for the fabrication of multiwall carbon nanotube-nanocrystal heterostructures is shown. Different quantum dots (QDs) with narrow size distributions were covalently coupled to carbon nanotubes (CNTs) and silica-coated CNTs in a simple, uniform, and controllable manner. The structural and optical properties of CNT/QD heterostructures are characterized by electron microscopy and photoluminescence spectroscopy. Complete quenching of the PL bands in both QD core and core/shell heterostructures was observed after adsorption to the CNTs, presumably through either carrier ionization or energy transfer. The deposition of a silica shell around the CNTs preserves the fluorescence properties by insulating the QD from the surface of the CNT. © 2006 American Chemical Society.
CITATION STYLE
Olek, M., Büsgen, T., Hilgendorff, M., & Giersig, M. (2006). Quantum dot modified multiwall carbon nanotubes. Journal of Physical Chemistry B, 110(26), 12901–12904. https://doi.org/10.1021/jp061453e
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