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Synthesis of Si and ZnO nanowires and whiskers by arc discharge♣

N. KOPRINAROV1,* , M. MARINOV2, D. DIMOVA-MALINOVSKA1, I. STARBOVA3, M. KONSTANTINOVA1, H. NICHEV1, TZ. TZACHEVA2

Affiliation

  1. a Central Laboratory for Solar Energy and New Energy Sources, Bulgarian Academy of Sciences, 72 Tzarigradsko Chaussee Blvd., 1784 Sofia, Bulgaria
  2. Institute of Physical Chemistry, Bulgarian Academy of Sciences, bl. 11 Acad. G. Bontchev St., 1113 Sofia, Bulgaria
  3. Central Laboratory for Photoprocesses, Bulgarian Academy of Sciences, bl. 109 Acad. G. Bontchev St., 1113 Sofia, Bulgaria

Abstract

The dimension reduction of materials to a nanometer scale gives rise to several advantages. Crystalline nanostructures such as nanotubes and nanowires have received increasing attention due to potential applications in nanoscale electronics, optics, sensing devices and medicine. This article reports the synthesis of Si and ZnO nanowires and nanowhiskers by DC arc discharge using a graphite cathode and a graphite anode filled with a Si/C or ZnO/C powder mixture, respectively. The reactor operates in a pre-evacuated argon-filled chamber at a pressure of 3x104 Pa. The DC arc current was 75 A. No catalysts have been used. The material obtained has been studied by SEM..

Keywords

Nanowires, Nanowhiskers, Arc-discharge, Si, ZnO.

Submitted at: Nov. 5, 2008
Accepted at: Sept. 9, 2009

Citation

N. KOPRINAROV, M. MARINOV, D. DIMOVA-MALINOVSKA, I. STARBOVA, M. KONSTANTINOVA, H. NICHEV, TZ. TZACHEVA, Synthesis of Si and ZnO nanowires and whiskers by arc discharge♣, Journal of Optoelectronics and Advanced Materials Vol. 11, Iss. 9, pp. 1304-1307 (2009)