Large scale tapered GaN rods grown by chemical vapour deposition

Hailin Qiu, Chuanbao Cao*, Xu Xiang, Yunhong Zhang, Jie Li, Hesun Zhu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

Large quantities of gallium nitride-tapered rods with sharp-tip were synthesized by a chemical vapour deposition method using the reaction of ammonia with the mixture of gallium oxide and carbon. The as-prepared rods have triangle cross section with lateral slope tapered to their ends; they are single-crystalline wurtzite structure crystals grown with the [112̄0] direction. The axial self-catalytic vapour-liquid-solid (VLS) growth and radial vapour-solid (VS) growth mechanism as well as the change of reactive atomic ratio (Ga/N) during growth process were believed to contribute to the formation of tapered rods.

Original languageEnglish
Pages (from-to)1-5
Number of pages5
JournalJournal of Crystal Growth
Volume290
Issue number1
DOIs
Publication statusPublished - 15 Apr 2006

Keywords

  • A1. Chemical vapour deposition
  • A1. Crystal morphology
  • B1. Nitrides
  • B2. Semiconducting III-V materials

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