Effect of substrate to filament distance on formation and photoluminescence properties of indium catalyzed silicon nanowires using hot-wire chemical vapor deposition

Su Kong Chong, Boon Tong Goh, Chang Fu Dee, Saadah Abdul Rahman

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Si nanowires have been synthesized by hot-wire chemical vapor deposition technique, with Indium nanocones employed as catalysts with different substrate to filament distances ranging from 6 to 3 cm. Reducing the substrate to filament distance resulted in the retention of more atomic H radicals on the growth sites. The atomic H radicals acted to induce the catalytic growth and enhance the crystallinity of the Si nanowires. The Si nanowires showed tapering structures due to the radial growth of columnar Si nanocrystallites on the middle and base walls of the nanowires. The oxide-related defects on the outer layer of the Indium nanocones and Si nanowires, as well as the Si nanocrystallites on walls of the Si nanowires, contributed to the visible orange and red photoluminescence.

Original languageEnglish
Pages (from-to)153-158
Number of pages6
JournalThin Solid Films
Volume529
DOIs
Publication statusPublished - 1 Feb 2013

Fingerprint

Indium
Silicon
Nanowires
indium
Chemical vapor deposition
filaments
Photoluminescence
nanowires
vapor deposition
wire
Wire
photoluminescence
silicon
Substrates
Nanocrystallites
tapering
Oxides
crystallinity
catalysts
Defects

Keywords

  • Hot-wire chemical vapor deposition
  • Indium
  • Photoluminescence
  • Silicon nanowires

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Metals and Alloys
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

Effect of substrate to filament distance on formation and photoluminescence properties of indium catalyzed silicon nanowires using hot-wire chemical vapor deposition. / Chong, Su Kong; Goh, Boon Tong; Dee, Chang Fu; Rahman, Saadah Abdul.

In: Thin Solid Films, Vol. 529, 01.02.2013, p. 153-158.

Research output: Contribution to journalArticle

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