Diameter optimization of VLS-synthesized ZnO nanowires, using statistical design of experiment

Sepideh Shafiei, Amirhasan Nourbakhsh, Bahram Ganjipour, Mostafa Zahedifar, Gholamreza Vakili-Nezhaad

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

The possibility of diameter optimization of ZnO nanowires by using statistical design of experiment (DoE) is investigated. In this study, nanowires were synthesized using a vapor-liquid-solid (VLS) growth method in a horizontal reactor. The effects of six synthesis parameters (synthesis time, synthesis temperature, thickness of gold layer, distance between ZnO holder and substrate, mass of ZnO and Ar flow rate) on the average diameter of a ZnO nanowire were examined using the fractional factorial design (FFD) coupled with response surface methodology (RSM). Using a 2III 6-3 FFD, the main effects of the thickness of the gold layer, synthesis temperature and synthesis time were concluded to be the key factors influencing the diameter. Then Box-Behnken design (BBD) was exploited to create a response surface from the main factors. The total number of required runs for the DoE process is 25, 8 runs for FFD parameter screening and 17 runs for the response surface obtained by BBD. Three extra runs are done to confirm the predicted results.

Original languageEnglish
Article number355708
JournalNanotechnology
Volume18
Issue number35
DOIs
Publication statusPublished - Sep 5 2007

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Design of experiments
Nanowires
Vapors
Liquids
Gold
Screening
Flow rate
Temperature
Substrates

ASJC Scopus subject areas

  • Materials Science(all)
  • Bioengineering
  • Chemistry(all)
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Diameter optimization of VLS-synthesized ZnO nanowires, using statistical design of experiment. / Shafiei, Sepideh; Nourbakhsh, Amirhasan; Ganjipour, Bahram; Zahedifar, Mostafa; Vakili-Nezhaad, Gholamreza.

In: Nanotechnology, Vol. 18, No. 35, 355708, 05.09.2007.

Research output: Contribution to journalArticle

Shafiei, Sepideh ; Nourbakhsh, Amirhasan ; Ganjipour, Bahram ; Zahedifar, Mostafa ; Vakili-Nezhaad, Gholamreza. / Diameter optimization of VLS-synthesized ZnO nanowires, using statistical design of experiment. In: Nanotechnology. 2007 ; Vol. 18, No. 35.
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