Low-temperature catalytic synthesis of gallium nitride nanowires

Ko Wei Chang, Jih Jen Wu

Research output: Contribution to journalArticlepeer-review

58 Citations (Scopus)

Abstract

Catalytic growth of high-purity GaN nanowires is achieved at temperatures of 750 and 620 °C using gallium acetylacetonate and ammonia gas. The straight single-crystal GaN nanowires with diameters in the range 15-60 nm are found to grow following the vermicular-like nanowires on Si(100) substrate at 750 °C via a vapor-liquid-solid (VLS) mechanism using Ni as a catalyst. Photoluminescence (PL) characteristics of the GaN nanowires show a UV emission peak ranging from 360 to 420 nm at room temperature. Successful growth of GaN nanowires at low temperatures is suggested to be due to sufficient gallium precursor provided by gallium acetylacetonate during synthesis.

Original languageEnglish
Pages (from-to)7796-7799
Number of pages4
JournalJournal of Physical Chemistry B
Volume106
Issue number32
DOIs
Publication statusPublished - 2002 Aug 15

All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films
  • Materials Chemistry

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