Colloidal Plasmonic Titanium Nitride Nanoparticles: Properties and Applications

Urcan Guler, Sergey Suslov, Alexander V. Kildishev, Alexandra Boltasseva, Vladimir M. Shalaev

Research output: Contribution to journalArticle

59 Citations (Scopus)

Abstract

Optical properties of colloidal plasmonic titanium nitride nanoparticles are examined with an eye on their photothermal and photocatalytic applications via transmission electron microscopy and optical transmittance measurements. Single crystal titanium nitride cubic nanoparticles with an average size of 50 nm, which was found to be the optimum size for cellular uptake with gold nanoparticles [1], exhibit plasmon resonance in the biological transparency window and demonstrate a high absorption efficiency. A self-passivating native oxide at the surface of the nanoparticles provides an additional degree of freedom for surface functionalization. The titanium oxide shell surrounding the plasmonic core can create new opportunities for photocatalytic applications.

Original languageEnglish
Pages (from-to)269-276
Number of pages8
JournalNanophotonics
Volume4
Issue number1
DOIs
Publication statusPublished - 1 Jan 2015
Externally publishedYes

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Keywords

  • hot electrons
  • photocatalysis
  • photodynamic therapy
  • photothermal effect
  • plasmonic heating
  • refractory plasmonics

ASJC Scopus subject areas

  • Biotechnology
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

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