Atomic structure and dynamic behaviour of truly one-dimensional ionic chains inside carbon nanotubes

R. Senga, H.-P. Komsa, Z. Liu, K. Hirose-Takai, A.V. Krasheninnikov, Kazu Suenaga

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Materials with reduced dimensionality have attracted much interest in various fields of fundamental and applied science. True one-dimensional (1D) crystals with single-atom thickness have been realized only for few elemental metals (Au, Ag) or carbon, all of which showed very short lifetimes under ambient conditions. We demonstrate here a successful synthesis of stable 1D ionic crystals in which two chemical elements, one being a cation and the other an anion, align alternately inside carbon nanotubes. Unusual dynamical behaviours for different atoms in the 1D lattice are experimentally corroborated and suggest substantial interactions of the atoms with the nanotube sheath. Our theoretical studies indicate that the 1D ionic crystals have optical properties distinct from those of their bulk counterparts and that the properties can be engineered by introducing atomic defects into the chains.
Original languageEnglish
Pages (from-to)1050-1054
JournalNature Materials
Volume13
DOIs
Publication statusPublished - 2014
MoE publication typeA1 Journal article-refereed

Keywords

  • CsI
  • ionic chain
  • nanotube
  • one-dimensional

Fingerprint Dive into the research topics of 'Atomic structure and dynamic behaviour of truly one-dimensional ionic chains inside carbon nanotubes'. Together they form a unique fingerprint.

  • Equipment

    OtaNano

    Anna Rissanen (Manager)

    Aalto University

    Facility/equipment: Facility

  • Cite this