Materials, Photonic Devices, and Sensors

Optimizing the synthesis of vanadium–oxygen nanostructures by plasma plume dynamics using optical imaging

[+] Author Affiliations
Bathusile N. Masina

CSIR-National Laser Centre, P.O. Box 395, Pretoria 0001, South Africa

University of KwaZulu-Natal, School of Physics, Private Bag X54001, Durban 4000, South Africa

Slimane Lafane, Samira Abdelli-Messaci, Tahar Kerdja

Centre de Développement des Technologies Avancées cité du 20 Août 1956, BP 17, Baba Hassen, Algeria

Lorinda Wu

CSIR-National Laser Centre, P.O. Box 395, Pretoria 0001, South Africa

Andrew Forbes

CSIR-National Laser Centre, P.O. Box 395, Pretoria 0001, South Africa

University of KwaZulu-Natal, School of Physics, Private Bag X54001, Durban 4000, South Africa

University of the Witwatersrand, School of Physics, Johannesburg 2000, South Africa

Opt. Eng. 54(3), 037106 (Mar 13, 2015). doi:10.1117/1.OE.54.3.037106
History: Received November 11, 2014; Accepted February 23, 2015
Text Size: A A A

Abstract.  The effect of an oxygen atmosphere on the expansion dynamics of a laser-produced vanadium-oxygen plasma has been investigated using a fast intensified charged-coupled device camera. We find regimes of the plasma plume expansion ranging from a free plume at vacuum and low oxygen pressures, through collisional and shock-wave-like hydrodynamic regimes at intermediate oxygen pressure, finally reaching a confined plume with subsequent thermalization of the plume particles at the highest pressure of the oxygen gas. Vanadium oxide nanostructures thin films were synthesized from this plasma and the resulting vanadium oxide phases studied as a function of the plume dynamics. We found monoclinic vanadium dioxide (VO2) (M1) and VO2 (B) nanoparticles in thin films deposited at 0.05 mbar. Pure phases of vanadium trioxide (V2O3) smooth and pentoxide (V2O5) nanorods thin films were detected at 0.01 and 0.1 to 0.2 mbar, respectively. Thin films containing VO2 (M1) were found to have a reversible metal-to-insulator transition at 61°C. This work paves the way to VO phase control by judicious choice of laser and plasma conditions.

Figures in this Article
© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Bathusile N. Masina ; Slimane Lafane ; Lorinda Wu ; Samira Abdelli-Messaci ; Tahar Kerdja, et al.
"Optimizing the synthesis of vanadium–oxygen nanostructures by plasma plume dynamics using optical imaging", Opt. Eng. 54(3), 037106 (Mar 13, 2015). ; http://dx.doi.org/10.1117/1.OE.54.3.037106


Tables

Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging & repositioning the boxes below.

Related Book Chapters

Topic Collections

PubMed Articles
Atomic Layer Deposition of Ultrathin Crystalline Epitaxial Films of V2O5. ACS Appl Mater Interfaces 2017;9(3):3178-3185.
Advertisement


 

  • Don't have an account?
  • Subscribe to the SPIE Digital Library
  • Create a FREE account to sign up for Digital Library content alerts and gain access to institutional subscriptions remotely.
Access This Article
Sign in or Create a personal account to Buy this article ($20 for members, $25 for non-members).
Access This Proceeding
Sign in or Create a personal account to Buy this article ($15 for members, $18 for non-members).
Access This Chapter

Access to SPIE eBooks is limited to subscribing institutions and is not available as part of a personal subscription. Print or electronic versions of individual SPIE books may be purchased via SPIE.org.