Structural and photoluminescence properties of laser processed ZnO/carbon nanotube nanohybrids

Brahim Aissa, Christian Fauteux, My Ali El Khakani, Daniel Therriault

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Zinc oxide (ZnO)/carbon-nanotubular-structures (CNTS) nanohybrids were grown using a three-step laser process. First, an ultraviolet (UV) laser (KrF) was used to deposit Co/Ni catalyst nanoparticles (NP) directly onto SiO 2/Si substrates. Second, a random network of CNTS was grown onto these Co/Ni-catalyzed substrates by using the UV-laser ablation method. Finally, ZnO nanostructures were grown onto the CNTS template by means of the CO 2 laser-induced chemical liquid deposition technique. While the laterally grown CNTS mainly consist of nanotube bundles featuring a high aspect ratio (diameter of ̃20 nm and length of up to several microns), the ZnO nanostructures were found to consist of various morphologies including nanorods, polypods, and nanoparticles with a size as small as 2 nm. The ZnO/CNTS nanohybrids were found to exhibit a polychromatic photoluminescent (PL) emission, at room temperature, comprising a narrow near-UV band centered around 390 nm, a broad visible to near infrared band (500-900 nm), and a relatively weak emission band centered around 1000 nm. These PL results are compared to those of individual components (CNTS and ZnO) and discussed in terms of carbon defect density and possible charge transfer between the ZnO nanocrystals and the carbon nanotubes.

Original languageEnglish
Pages (from-to)3313-3320
Number of pages8
JournalJournal of Materials Research
Volume24
Issue number11
DOIs
Publication statusPublished - Nov 2009
Externally publishedYes

Fingerprint

Zinc Oxide
Carbon Nanotubes
Zinc oxide
zinc oxides
Carbon nanotubes
Photoluminescence
Carbon
carbon nanotubes
photoluminescence
Lasers
carbon
lasers
Ultraviolet lasers
ultraviolet lasers
Nanostructures
Nanoparticles
nanoparticles
Defect density
Laser ablation
Substrates

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanical Engineering
  • Mechanics of Materials
  • Condensed Matter Physics

Cite this

Structural and photoluminescence properties of laser processed ZnO/carbon nanotube nanohybrids. / Aissa, Brahim; Fauteux, Christian; Khakani, My Ali El; Therriault, Daniel.

In: Journal of Materials Research, Vol. 24, No. 11, 11.2009, p. 3313-3320.

Research output: Contribution to journalArticle

Aissa, Brahim ; Fauteux, Christian ; Khakani, My Ali El ; Therriault, Daniel. / Structural and photoluminescence properties of laser processed ZnO/carbon nanotube nanohybrids. In: Journal of Materials Research. 2009 ; Vol. 24, No. 11. pp. 3313-3320.
@article{f5cc4b6a4402481e9ce54204de3ce068,
title = "Structural and photoluminescence properties of laser processed ZnO/carbon nanotube nanohybrids",
abstract = "Zinc oxide (ZnO)/carbon-nanotubular-structures (CNTS) nanohybrids were grown using a three-step laser process. First, an ultraviolet (UV) laser (KrF) was used to deposit Co/Ni catalyst nanoparticles (NP) directly onto SiO 2/Si substrates. Second, a random network of CNTS was grown onto these Co/Ni-catalyzed substrates by using the UV-laser ablation method. Finally, ZnO nanostructures were grown onto the CNTS template by means of the CO 2 laser-induced chemical liquid deposition technique. While the laterally grown CNTS mainly consist of nanotube bundles featuring a high aspect ratio (diameter of ̃20 nm and length of up to several microns), the ZnO nanostructures were found to consist of various morphologies including nanorods, polypods, and nanoparticles with a size as small as 2 nm. The ZnO/CNTS nanohybrids were found to exhibit a polychromatic photoluminescent (PL) emission, at room temperature, comprising a narrow near-UV band centered around 390 nm, a broad visible to near infrared band (500-900 nm), and a relatively weak emission band centered around 1000 nm. These PL results are compared to those of individual components (CNTS and ZnO) and discussed in terms of carbon defect density and possible charge transfer between the ZnO nanocrystals and the carbon nanotubes.",
author = "Brahim Aissa and Christian Fauteux and Khakani, {My Ali El} and Daniel Therriault",
year = "2009",
month = "11",
doi = "10.1557/jmr.2009.0421",
language = "English",
volume = "24",
pages = "3313--3320",
journal = "Journal of Materials Research",
issn = "0884-2914",
publisher = "Materials Research Society",
number = "11",

}

TY - JOUR

T1 - Structural and photoluminescence properties of laser processed ZnO/carbon nanotube nanohybrids

AU - Aissa, Brahim

AU - Fauteux, Christian

AU - Khakani, My Ali El

AU - Therriault, Daniel

PY - 2009/11

Y1 - 2009/11

N2 - Zinc oxide (ZnO)/carbon-nanotubular-structures (CNTS) nanohybrids were grown using a three-step laser process. First, an ultraviolet (UV) laser (KrF) was used to deposit Co/Ni catalyst nanoparticles (NP) directly onto SiO 2/Si substrates. Second, a random network of CNTS was grown onto these Co/Ni-catalyzed substrates by using the UV-laser ablation method. Finally, ZnO nanostructures were grown onto the CNTS template by means of the CO 2 laser-induced chemical liquid deposition technique. While the laterally grown CNTS mainly consist of nanotube bundles featuring a high aspect ratio (diameter of ̃20 nm and length of up to several microns), the ZnO nanostructures were found to consist of various morphologies including nanorods, polypods, and nanoparticles with a size as small as 2 nm. The ZnO/CNTS nanohybrids were found to exhibit a polychromatic photoluminescent (PL) emission, at room temperature, comprising a narrow near-UV band centered around 390 nm, a broad visible to near infrared band (500-900 nm), and a relatively weak emission band centered around 1000 nm. These PL results are compared to those of individual components (CNTS and ZnO) and discussed in terms of carbon defect density and possible charge transfer between the ZnO nanocrystals and the carbon nanotubes.

AB - Zinc oxide (ZnO)/carbon-nanotubular-structures (CNTS) nanohybrids were grown using a three-step laser process. First, an ultraviolet (UV) laser (KrF) was used to deposit Co/Ni catalyst nanoparticles (NP) directly onto SiO 2/Si substrates. Second, a random network of CNTS was grown onto these Co/Ni-catalyzed substrates by using the UV-laser ablation method. Finally, ZnO nanostructures were grown onto the CNTS template by means of the CO 2 laser-induced chemical liquid deposition technique. While the laterally grown CNTS mainly consist of nanotube bundles featuring a high aspect ratio (diameter of ̃20 nm and length of up to several microns), the ZnO nanostructures were found to consist of various morphologies including nanorods, polypods, and nanoparticles with a size as small as 2 nm. The ZnO/CNTS nanohybrids were found to exhibit a polychromatic photoluminescent (PL) emission, at room temperature, comprising a narrow near-UV band centered around 390 nm, a broad visible to near infrared band (500-900 nm), and a relatively weak emission band centered around 1000 nm. These PL results are compared to those of individual components (CNTS and ZnO) and discussed in terms of carbon defect density and possible charge transfer between the ZnO nanocrystals and the carbon nanotubes.

UR - http://www.scopus.com/inward/record.url?scp=70450119935&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=70450119935&partnerID=8YFLogxK

U2 - 10.1557/jmr.2009.0421

DO - 10.1557/jmr.2009.0421

M3 - Article

VL - 24

SP - 3313

EP - 3320

JO - Journal of Materials Research

JF - Journal of Materials Research

SN - 0884-2914

IS - 11

ER -