Investigation of local modification and luminescence of a carbon nanotube by scanning tunneling microscopy

Research output: Contribution to journalArticle

Abstract

We have studied the nanoscale luminescence from a multiwalled carbon nanotube (CNT) adsorbed on Au(111) using a scanning tunneling microscope (STM). STM images revealed that a number of isolated chains of CNTs can be deposited by dry contact transfer while keeping the surface clean. By injecting tunneling electrons from the STM tip to the CNT, we observed STM light emission (STM-LE) from the CNT in the visible-light range, showing electronic transitions between the bands associated with the van Hove singularity in the density of states of the CNT. The STM-LE spectrum was obviously changed after introducing the local defect created by the STM tip, indicating the controllability of the nanoscale luminescence within a single chain of a CNT.

Original languageEnglish
Article number011601
JournalApplied Physics Letters
Volume112
Issue number1
DOIs
Publication statusPublished - 2018 Jan 1

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'Investigation of local modification and luminescence of a carbon nanotube by scanning tunneling microscopy'. Together they form a unique fingerprint.

  • Cite this