Synthesis of indium-catalyzed Si nanowires by hot-wire chemical vapor deposition

Chong, S.K.; Goh, B.T.; Aspanut, Z.; Muhamad, M.R.; Dee, C.F.; Rahman, S.A. (2011) Synthesis of indium-catalyzed Si nanowires by hot-wire chemical vapor deposition. Materials Letters, 65 (15-16). pp. 2452-2454. ISSN 0167-577X

Full text not available from this repository. (Request a copy)

Abstract

Indium (In) catalyzed silicon nanowires (SiNWs) were synthesized by using hot-wire chemical vapor deposition (HWCVD) technique. Indium droplets were deposited on Si substrates by hot-wire evaporation of In wire, which was immediately followed by the growth of SiNWs from the droplets. Three sets of samples were prepared by varying the length of In wires, l, as 3, 1 and 0.5 mm. The sizes of In catalyst droplets decreased from 271.4 +/- 66.8 to 67.4 +/- 16.6 nm when the l was reduced from 3 to 0.5 mm. Larger size of In droplets (271.4 +/- 66.8 nm) was found to induce the growth of worm-like NWs. The decrease in size of In catalyst droplets induced the formation of aligned and tapered NWs with smaller tips. The smallest value of tapering parameter, T-p of 40.5 nm/mu m is correlated to the SiNWs induced by the smallest size of In droplets (67.4 +/- 16.6 nm). The as-grown SiNWs showed high purity and good crystalline structure. (C) 2011 Elsevier B.V. All rights reserved.

Item Type: Article
Creators:
  1. Chong, S.K.
  2. Goh, B.T.
  3. Aspanut, Z.
  4. Muhamad, M.R.
  5. Dee, C.F.
  6. Rahman, S.A.(Department of Physics, Faculty of Science Building, University of Malaya, 50603 Kuala Lumpur, MALAYSIA)
Journal or Publication Title: Materials Letters
Uncontrolled Keywords: Silicon nanowires Indium Chemical vapor deposition Hot-wire Crystal structure silicon nanowires growth kinetics
Subjects: Q Science > QC Physics
Divisions: Faculty of Science > Dept of Physics
Depositing User: miss munirah saadom
Date Deposited: 16 Jul 2013 09:32
Last Modified: 11 Dec 2013 12:00
URI: http://eprints.um.edu.my/id/eprint/7381

Actions (For repository staff only: Login required)

View Item