Photoluminescence recovery from single-walled carbon nanotubes on substrates

  • Xie L
  • Liu C
  • Zhang J
 et al. 
  • 22

    Readers

    Mendeley users who have this article in their library.
  • 15

    Citations

    Citations of this article.

Abstract

We have observed bright photoluminescence (PL) from single-walled carbon nanotubes (SWNTs) on self-assembly monolayer (SAM) functionized SiO2/Si substrates. By contrast, no PL was observed from pristine SWNTs grown on substrates (SiO2/Si and Al2O3). This suggests a successful blocking of substrate-induced nonradiative decay of excitons. PL recovery from transferred SWNTs on substrates is attributed to breaking chemical bonding between SWNTs and underlying substrates and blocking electron transfer from SWNTs to defect states in SiO2. By analyzing dependence of PL intensity on thickness of SAMs, key constant β for electron transfer in SWNT/SAM/SiO2 system was obtained (β = 0.11, 0.14 Å-1 for the emission region in 1380−1480 and 1480−1580 nm, respectively).

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

Authors

  • Liming Xie

  • Cui Liu

  • Jin Zhang

  • Yongyi Zhang

  • Liying Jiao

  • Lai Jiang

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free