Holey single-walled carbon nanotubes for ultra-fast broadband bolometers

Research output: Contribution to journalArticleScientificpeer-review

Researchers

  • Daria S. Kopylova
  • Fedor S. Fedorov
  • Alena A. Alekseeva
  • Evgenia P. Gilshteyn
  • Alexey P. Tsapenko
  • Anton V. Bubis
  • Artem K. Grebenko
  • Zakhar I. Popov
  • Pavel B. Sorokin
  • Yuriy G. Gladush
  • Anton S. Anisimov
  • Albert Nasibulin

Research units

  • Skolkovo Institute of Science and Technology
  • National University of Science and Technology "MISiS"
  • Canatu Ltd.

Abstract

Although carbon nanotubes have already been demonstrated to be a promising material for bolometric photodetectors, enhancing sensitivity while maintaining the speed of operation remains a great challenge. Here, we present a holey carbon nanotube network, designed to improve the temperature coefficient of resistance for highly sensitive ultra-fast broadband bolometers. Treatment of carbon nanotube films with low-frequency oxygen plasma allows fine tuning of the electronic properties of the material. The temperature coefficient of resistance of our films is much greater than the reported values for pristine carbon nanotubes, up to -2.8% K-1 at liquid nitrogen temperature. The bolometer prototypes made from the treated films demonstrate high sensitivity over a wide IR range, a short response time, smooth spectral characteristics and a low noise level.

Details

Original languageEnglish
Pages (from-to)18665-18671
Number of pages7
JournalNanoscale
Volume10
Issue number39
Publication statusPublished - 21 Oct 2018
MoE publication typeA1 Journal article-refereed

ID: 28929631