Synthesis and characterization of carbon nanotube-nanocrystal heterostructures Academic Article

abstract

• Oxidized single-walled carbon nanotubes (SWNTs) have been reacted with cadmium selenide (CdSe) nanocrystals, capped with mercaptothiol derivatives, as well as with titanium dioxide (TiO2) nanocrystals, functionalized with 11-aminoundecanoic acid to form nanoscale heterostructures, characterized by transmission electron microscopy and infrared spectroscopy. The reaction with acid-terminated CdSe nanocrystals and acid-terminated tubes was facilitated with the aid of intermediary linking agents, such as ethylenediamine and semicarbazide, in an amide-forming reaction in the presence of 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide hydrochloride, EDC. Based on electronic absorption spectroscopy, charge transfer is thought to proceed from the nanocrystal to the nanotube in the CdSe-nanotube system, whereas in the TiO2-nanotube system, charge transfer is expected to occur from the nanotube to the nanocrystal.

authors

• Banerjee, Sarbajit

published proceedings

• NANO LETTERS

altmetric score

• 6

author list (cited authors)

• Banerjee, S., & Wong, S. S.

citation count

• 331

complete list of authors

• Banerjee, S||Wong, SS

publication date

• March 2002

publisher

• American Chemical Society (ACS)  Publisher

published in

• Nano Letters: a journal dedicated to nanoscience and nanotechnology  Journal

keywords

• 32 Biomedical And Clinical Sciences
• 3206 Medical Biotechnology
• 34 Chemical Sciences
• 3406 Physical Chemistry
• 40 Engineering
• 4018 Nanotechnology
• 41 Environmental Sciences
• 4103 Environmental Biotechnology
• Bioengineering
• Nanotechnology

Digital Object Identifier (DOI)

• 10.1021/nl015651n

start page

• 195

end page

• 200

volume

• 2

issue

• 3

URL

• http%3A%2F%2Fdx.doi.org%2F10.1021%2Fnl015651n