Ordered arrays of high-quality single-crystalline α-Si3N4nanowires: Synthesis, properties and applications

Mashkoor Ahmad, Jiong Zhao, Caofeng Pan, Jing Zhu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

25 Citations (Scopus)

Abstract

Ordered arrays of high-quality single-crystalline α-Si3N4nanowires (NWs) have been synthesized via thermal evaporation and detailed characteristics of the NWs have been analyzed by employing scanning electron microscope (SEM) along with energy dispersive spectroscopy (EDS), high-resolution transmission electron microscope (HRTEM), X-ray diffraction (XRD), X-ray photospectroscopy (XPS), infrared (IR), photoluminescence (PL) and in situ I-V measurements by STM/TEM holder. The microscopic results revealed that the NWs having diameter in the range of ~30-100 nm and length in microns. Furthermore, the NWs are found to be single crystalline grown along [0 0 1] direction. The elemental composition and valence states of elements are analyzed by EDS and XPS. The room temperature PL spectra exhibit a broad range visible emission band. The electron transport property of a single NW illustrates the symmetric I-V curve of a semiconductor. The possible growth mechanism is also briefly discussed.
Original languageEnglish
Pages (from-to)4486-4490
Number of pages5
JournalJournal of Crystal Growth
Volume311
Issue number20
DOIs
Publication statusPublished - 1 Oct 2009
Externally publishedYes

Keywords

  • A1. Ordered arrays
  • A2. Crystalline
  • B1. α-Si N nanowires 3 4

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

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