Infrared plasmonics with indium-tin-oxide nanorod arrays

Shi Qiang Li, Peijun Guo, Lingxiao Zhang, Wei Zhou, Teri W Odom, Tamar Seideman, John B. Ketterson, Robert P. H. Chang

Research output: Contribution to journalArticle

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Abstract

This article reports the study of infrared plasmonics with both random and periodic arrays of indium-tin-oxide (ITO) nanorods (NR). A description is given on the synthesis, patterning, and characterization of physical properties of the ITO NR arrays. A classical scattering model, along with a 3-D finite-element-method and a 3-D finite-difference-time-domain numerical simulation method has been used to interpret the unique light scattering phenomena. It is also shown that the intrinsic plasma frequency can be varied through careful postsynthesis processing of the ITO NRs. Examples are given on how coupled plasmon resonances can be tuned through patterning of the ITO NR arrays. In addition, environment dielectric sensing has been demonstrated through the shift of the resonances as a result of index change surrounding the NRs. These initial results suggest potential for further improvement and opportunities to develop a good understanding of infrared plasmonics using ITO and other transparent conducting oxide semiconducting materials.

Original languageEnglish
Pages (from-to)9161-9170
Number of pages10
JournalACS Nano
Volume5
Issue number11
DOIs
Publication statusPublished - Nov 22 2011

Fingerprint

Tin oxides
Nanorods
indium oxides
Indium
tin oxides
nanorods
Infrared radiation
plasma frequencies
Light scattering
Oxides
finite element method
light scattering
Physical properties
physical properties
indium tin oxide
Scattering
Plasmas
Finite element method
conduction
oxides

Keywords

  • degenerate semiconductors
  • field enhancement
  • infrared plasmonics
  • nanorod
  • sensing
  • transparent conducting oxide

ASJC Scopus subject areas

  • Engineering(all)
  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

Infrared plasmonics with indium-tin-oxide nanorod arrays. / Li, Shi Qiang; Guo, Peijun; Zhang, Lingxiao; Zhou, Wei; Odom, Teri W; Seideman, Tamar; Ketterson, John B.; Chang, Robert P. H.

In: ACS Nano, Vol. 5, No. 11, 22.11.2011, p. 9161-9170.

Research output: Contribution to journalArticle

Li, SQ, Guo, P, Zhang, L, Zhou, W, Odom, TW, Seideman, T, Ketterson, JB & Chang, RPH 2011, 'Infrared plasmonics with indium-tin-oxide nanorod arrays', ACS Nano, vol. 5, no. 11, pp. 9161-9170. https://doi.org/10.1021/nn203406f
Li SQ, Guo P, Zhang L, Zhou W, Odom TW, Seideman T et al. Infrared plasmonics with indium-tin-oxide nanorod arrays. ACS Nano. 2011 Nov 22;5(11):9161-9170. https://doi.org/10.1021/nn203406f
Li, Shi Qiang ; Guo, Peijun ; Zhang, Lingxiao ; Zhou, Wei ; Odom, Teri W ; Seideman, Tamar ; Ketterson, John B. ; Chang, Robert P. H. / Infrared plasmonics with indium-tin-oxide nanorod arrays. In: ACS Nano. 2011 ; Vol. 5, No. 11. pp. 9161-9170.
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