Multistep Wavelength Switching of Near-Infrared Photoluminescence Driven by Chemical Reactions at Local Doped Sites of Single-Walled Carbon Nanotubes

Tomohiro Shiraki, Tamehito Shiga, Tomonari Shiraishi, Hisashi Onitsuka, Naotoshi Nakashima, Tsuyohiko Fujigaya

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3 Citations (Scopus)

Abstract

Local chemical functionalization is used for defect doping of single-walled carbon nanotubes (SWNTs), to develop near-infrared photoluminescence (NIR PL) properties. We report the multistep wavelength shifting of the NIR PL of SWNTs through chemical reactions at local doped sites tethered to an arylaldehyde group. The PL wavelength of the doped SWNTs is modulated based on imine chemistry. This involves the imine formation of aldehyde groups with added arylamines, imine dissociation reaction, exchange reaction of bound arylamines in the imine, and the Kabachnik–Fields reaction of imine groups using diisopropyl phosphite. Using doped sites as a localized chemical reaction platform can exploit the versatile molecularly driven functionality of carbon nanotubes and related nanomaterials.

Original languageEnglish
Pages (from-to)19162-19165
Number of pages4
JournalChemistry - A European Journal
Volume24
Issue number72
DOIs
Publication statusPublished - Dec 20 2018

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All Science Journal Classification (ASJC) codes

  • Catalysis
  • Organic Chemistry

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