Synthesis and Characterization of Carbon Nanotube-Nanocrystal Heterostructures

Sarbajit Banerjee; Stanislaus S. Wong

doi:10.1021/nl015651n

Synthesis and Characterization of Carbon Nanotube-Nanocrystal Heterostructures

Sarbajit Banerjee
, Stanislaus S. Wong

Chemistry

Stony Brook University

Research output: Contribution to journal › Article › peer-review

388 Scopus citations

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.

Original language	English
Pages (from-to)	195-200
Number of pages	6
Journal	Nano Letters
Volume	2
Issue number	3
DOIs	https://doi.org/10.1021/nl015651n
State	Published - Mar 2002

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title = "Synthesis and Characterization of Carbon Nanotube-Nanocrystal Heterostructures",

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.",

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AU - Banerjee, Sarbajit

AU - Wong, Stanislaus S.

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N2 - 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.

AB - 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.

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JO - Nano Letters

JF - Nano Letters

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ER -

Synthesis and Characterization of Carbon Nanotube-Nanocrystal Heterostructures

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