Photoisomerization of Covalently Attached Diarylethene on Locally Functionalized Single-Walled Carbon Nanotubes for Photoinduced Wavelength Switching of Near-Infrared Photoluminescence

Yasuto Nakagawa, Boda Yu, Yoshiaki Niidome, Keita Hayashi, Aleksandar Staykov, Miku Yamada, Takuya Nakashima, Tsuyoshi Kawai, Tsuyohiko Fujigaya, Tomohiro Shiraki

Research output: Contribution to journalArticlepeer-review

Abstract

Near-infrared photoluminescence (NIR PL) at regions over 1000 nm is used by advanced optical technologies such as quantum communication and deep tissue bioimaging. We demonstrate that covalent attachment of a diarylethene derivative to single-walled carbon nanotubes (SWCNTs) introduces sp3 carbon defects into the crystalline sp2 carbon networks of SWCNTs through chemical functionalization by which red-shifted and bright NIR PL band at 1142 nm appears. Moreover, its PL wavelength switching is achieved reversibly and repeatedly based on photoisomerization of the diarylethene moieties on the nanotubes. The photoswitching phenomena confirmed by spectroscopic measurements and theoretical calculations reveal that the band gaps for PL change according to the diarylethene isomerization on the nanotubes.

Original languageEnglish
Pages (from-to)10478-10486
Number of pages9
JournalJournal of Physical Chemistry C
Volume126
Issue number25
DOIs
Publication statusPublished - Jun 30 2022

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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