Supramolecular hybrid of gold nanoparticles and semiconducting single-walled carbon nanotubes wrapped by a porphyrin-fluorene copolymer

Hiroaki Ozawa, Xun Yi, Tsuyohiko Fujigaya, Yasuro Niidome, Tanemasa Asano, Naotoshi Nakashima

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

We describe the design, synthesis, and characterization of a supramolecular hybrid of gold nanometals and semiconducting single-walled carbon nanotubes (SWNTs) wrapped by a porphyrin-fluorene copolymer (1), as well as fabrication of a thin-film transistor (TFT) device using the hybrid. Photoluminescence mapping revealed that the copolymer selectively dissolved SWNTs with chirality indices of (8,6), (8,7), (9,7), (7,6), and (7,5); dissolution of (8,6), and (8,7) SWNTs was especially efficient. The solubilized SWNTs were connected to gold nanoparticles (AuNPs) via a coordination bond to prepare a supramolecular hybrid composed of AuNPs/copolymer 1-wrapped SWNTs, which were studied by atomic force and scanning and transmission electron microscopies. A fabricated TFT device using the semiconducting SWNTs/copolymer 1 shows evident p-type transport with an On/Off ratio of ∼105. The transport properties of the TFT changed after coordination of the AuNPs with the SWNTs/copolymer 1.

Original languageEnglish
Pages (from-to)14771-14777
Number of pages7
JournalJournal of the American Chemical Society
Volume133
Issue number37
DOIs
Publication statusPublished - Sep 21 2011

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Carbon Nanotubes
Porphyrins
Single-walled carbon nanotubes (SWCN)
Gold
Nanoparticles
Copolymers
Thin film transistors
Equipment and Supplies
Scanning Transmission Electron Microscopy
Chirality
fluorene
Transport properties
Photoluminescence
Dissolution
Transmission electron microscopy
Fabrication
Scanning electron microscopy

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

Cite this

Supramolecular hybrid of gold nanoparticles and semiconducting single-walled carbon nanotubes wrapped by a porphyrin-fluorene copolymer. / Ozawa, Hiroaki; Yi, Xun; Fujigaya, Tsuyohiko; Niidome, Yasuro; Asano, Tanemasa; Nakashima, Naotoshi.

In: Journal of the American Chemical Society, Vol. 133, No. 37, 21.09.2011, p. 14771-14777.

Research output: Contribution to journalArticle

Ozawa, Hiroaki ; Yi, Xun ; Fujigaya, Tsuyohiko ; Niidome, Yasuro ; Asano, Tanemasa ; Nakashima, Naotoshi. / Supramolecular hybrid of gold nanoparticles and semiconducting single-walled carbon nanotubes wrapped by a porphyrin-fluorene copolymer. In: Journal of the American Chemical Society. 2011 ; Vol. 133, No. 37. pp. 14771-14777.
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