Pulsed laser deposition of indium tin oxide nanowires in argon and helium

Thian Khok Yong, Sek Sean Tan, Chen Hon Nee, Seong Shan Yap, Yeh Yee Kee, György Sáfrán, Zsolt Endre Horváth, Jason Moscatello, Yoke Khin Yap, Teck Yong Tou

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24 Citations (Scopus)

Abstract

Nanowires of indium tin oxide (ITO) were grown on catalyst-free amorphous glass substrates at relatively low temperature of 250 °C in argon and helium ambient by the Nd:YAG pulsed laser deposition technique. All the ITO samples showed crystalline structure due to substrate heating and the (400) X-ray diffraction peak became relatively stronger as the pressure was increased. The surface morphology was also changed from compact, polycrystalline thin-film layers to a dendritic layer consisting of nanowires for some limited pressure ranges. The transition from the normal thin-film structure to nanowires was likely due to the vapor-liquid-solid mechanism but under catalyst-free condition. These nanowires tended to grow perpendicularly on the glass substrate, as observed with the transmission electron microscopy (TEM), which also confirmed that these nanowires were crystalline.

Original languageEnglish
Pages (from-to)280-281
Number of pages2
JournalMaterials Letters
Volume66
Issue number1
DOIs
Publication statusPublished - Jan 1 2012

Keywords

  • Electronic materials
  • Laser processing
  • Thin films

ASJC Scopus subject areas

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

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    Yong, T. K., Tan, S. S., Nee, C. H., Yap, S. S., Kee, Y. Y., Sáfrán, G., Horváth, Z. E., Moscatello, J., Yap, Y. K., & Tou, T. Y. (2012). Pulsed laser deposition of indium tin oxide nanowires in argon and helium. Materials Letters, 66(1), 280-281. https://doi.org/10.1016/j.matlet.2011.08.085