One-step synthesis route of the aligned and non-aligned single crystalline α-Si3N4nanowires

Mashkoor Ahmad, Jiong Zhao, Fan Zhang, Caofeng Pan, Jing Zhu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

5 Citations (Scopus)

Abstract

This paper reports the bulk synthesis route of the aligned and non-aligned high-quality α-Si3N4nanowires (NWS) which were grown directly from the Si substrate by vapor phase deposition at 1050°. The as-grown products were characterized by employing XRD, SEM, HRTEM and photoluminescence. The microscopic results revealed that the products consist of single crystalline aligned and non-aligned α-Si3N4NWs having a same diameter range of 30-100 nm and different lengths of about hundreds of microns. The XRD observation revealed that the products consist of α-phase Si3N4NWs. The room temperature PL spectra indicated that the NWs have good emission property. The non-aligned NWs were formed at lower temperature as compared with aligned NWs. Our method is a simple and one-step procedure to synthesize the bulk-quantity and high-purity aligned and non-aligned α-Si3N4NWs at a relatively low temperature. The possible growth mechanism was also briefly discussed.
Original languageEnglish
Pages (from-to)1-5
Number of pages5
JournalScience in China, Series E: Technological Sciences
Volume52
Issue number1
DOIs
Publication statusPublished - 1 Jan 2009
Externally publishedYes

Keywords

  • Aligned
  • Crystalline
  • Non-aligned
  • Si N nanowires 3 4

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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