Single-walled carbon nanotubes coated with ZnO by atomic layer deposition

Research output: Contribution to journalArticleScientificpeer-review

Researchers

Research units

  • Indian Institute of Technology, Dhanbad
  • Skolkovo Institute of Science and Technology
  • St. Petersburg State Polytechnical University

Abstract

The possibility of ZnO deposition on the surface of single-walled carbon nanotubes (SWCNTs) with the help of an atomic layer deposition (ALD) technique was successfully demonstrated. The utilization of pristine SWCNTs as a support resulted in a non-uniform deposition of ZnO in the form of nanoparticles. To achieve uniform ZnO coating, the SWCNTs first needed to be functionalized by treating the samples in a controlled ozone atmosphere. The uniformly ZnO coated SWCNTs were used to fabricate UV sensing devices. An UV irradiation of the ZnO coated samples turned them from hydrophobic to hydrophilic behaviour. Furthermore, thin films of the ZnO coated SWCNTs allowed us switch p-type field effect transistors made of pristine SWCNTs to have ambipolar characteristics.

Details

Original languageEnglish
Article number485709
Pages (from-to)1-7
JournalNanotechnology
Volume27
Issue number48
Publication statusPublished - 4 Nov 2016
MoE publication typeA1 Journal article-refereed

    Research areas

  • ALD, CNT, field-effect transistor, functionalization, ozone, single-walled carbon nanotube films, UV sensing

ID: 9409677