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Intensive blue-light emission from semiconductor GaN nanowires sheathed with BN layers

Authors
Journal
Chemical Physics Letters
0009-2614
Publisher
Elsevier
Publication Date
Volume
383
Identifiers
DOI: 10.1016/j.cplett.2003.11.057
Disciplines
  • Chemistry
  • Mathematics

Abstract

Abstract Semiconductor GaN nanowires, sheathed with BN layers, were successfully synthesized by a simple chemical vapor deposition. The experimentally determined structure consists of a hexagonal wurtzite GaN core, and the outer shell of BN separated in the radial direction. The GaN-BN assembly-structure was about 40–50 nm in diameter and up to several hundreds of micrometers in length. The photoluminescence spectrum of the GaN-BN assembly-structure shows a very strong and broad blue-light emission, centered at 464 nm. The assembly-structures with semiconductor–insulator geometry, which take advantage of this self-organization mechanism for multi-element nanotube formation, have great prospects in fundamental physical science and applications in nanoscale optoelectronic devices (such as nanolasers).

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