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Reversible surface oxidation and efficient luminescence quenching in semiconductor single-wall carbon nanotubes

We have investigated reversible single-wall carbon nanotube (SWNT) oxidation by quantitative analysis of the oxide-induced absorption bleaching and luminescence quenching at low pH. These data, in combination with DFT structure calculations, suggest that the nanotube oxide is a 1,4-endoperoxide. At... Full description

Journal Title: Journal of the American Chemical Society 24 November 2004, Vol.126(46), pp.15269-76
Main Author: Dukovic, Gordana
Other Authors: White, Brian E , Zhou, Zhiyong , Wang, Feng , Jockusch, Steffen , Steigerwald, Michael L , Heinz, Tony F , Friesner, Richard A , Turro, Nicholas J , Brus, Louis E
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 0002-7863 ; PMID: 15548024 Version:1
Link: http://pubmed.gov/15548024
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recordid: medline15548024
title: Reversible surface oxidation and efficient luminescence quenching in semiconductor single-wall carbon nanotubes
format: Article
creator:
  • Dukovic, Gordana
  • White, Brian E
  • Zhou, Zhiyong
  • Wang, Feng
  • Jockusch, Steffen
  • Steigerwald, Michael L
  • Heinz, Tony F
  • Friesner, Richard A
  • Turro, Nicholas J
  • Brus, Louis E
subjects:
  • Chemistry
ispartof: Journal of the American Chemical Society, 24 November 2004, Vol.126(46), pp.15269-76
description: We have investigated reversible single-wall carbon nanotube (SWNT) oxidation by quantitative analysis of the oxide-induced absorption bleaching and luminescence quenching at low pH. These data, in combination with DFT structure calculations, suggest that the nanotube oxide is a 1,4-endoperoxide. At low pH, the endoperoxide protonates to create a hydroperoxide carbocation, introducing a hole in the SWNT valence band. Nanotube luminescence is extremely sensitive to quenching by hole-doping, while the absorption is relatively robust.
language: eng
source:
identifier: ISSN: 0002-7863 ; PMID: 15548024 Version:1
fulltext: no_fulltext
issn:
  • 00027863
  • 0002-7863
url: Link


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titleReversible surface oxidation and efficient luminescence quenching in semiconductor single-wall carbon nanotubes
creatorDukovic, Gordana ; White, Brian E ; Zhou, Zhiyong ; Wang, Feng ; Jockusch, Steffen ; Steigerwald, Michael L ; Heinz, Tony F ; Friesner, Richard A ; Turro, Nicholas J ; Brus, Louis E
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identifierISSN: 0002-7863 ; PMID: 15548024 Version:1
descriptionWe have investigated reversible single-wall carbon nanotube (SWNT) oxidation by quantitative analysis of the oxide-induced absorption bleaching and luminescence quenching at low pH. These data, in combination with DFT structure calculations, suggest that the nanotube oxide is a 1,4-endoperoxide. At low pH, the endoperoxide protonates to create a hydroperoxide carbocation, introducing a hole in the SWNT valence band. Nanotube luminescence is extremely sensitive to quenching by hole-doping, while the absorption is relatively robust.
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titleReversible surface oxidation and efficient luminescence quenching in semiconductor single-wall carbon nanotubes
descriptionWe have investigated reversible single-wall carbon nanotube (SWNT) oxidation by quantitative analysis of the oxide-induced absorption bleaching and luminescence quenching at low pH. These data, in combination with DFT structure calculations, suggest that the nanotube oxide is a 1,4-endoperoxide. At low pH, the endoperoxide protonates to create a hydroperoxide carbocation, introducing a hole in the SWNT valence band. Nanotube luminescence is extremely sensitive to quenching by hole-doping, while the absorption is relatively robust.
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authorDukovic, Gordana ; White, Brian E ; Zhou, Zhiyong ; Wang, Feng ; Jockusch, Steffen ; Steigerwald, Michael L ; Heinz, Tony F ; Friesner, Richard A ; Turro, Nicholas J ; Brus, Louis E
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abstractWe have investigated reversible single-wall carbon nanotube (SWNT) oxidation by quantitative analysis of the oxide-induced absorption bleaching and luminescence quenching at low pH. These data, in combination with DFT structure calculations, suggest that the nanotube oxide is a 1,4-endoperoxide. At low pH, the endoperoxide protonates to create a hydroperoxide carbocation, introducing a hole in the SWNT valence band. Nanotube luminescence is extremely sensitive to quenching by hole-doping, while the absorption is relatively robust.
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date2004-11-24