Growth of two-dimensional GaN in Na-4 mica nanochannels

Santanu Bhattacharya, Anindya Datta, Sandip Dhara, Dipankar Chakravorty

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

Two-dimensional GaN films and ribbons have been synthesized within Na-4 mica nanochannels. The thickness of the films is 0.6 nm as estimated from published x-ray diffraction data of Na-4 mica. Room temperature photoluminescence studies show a blue shift in bandgap which is ascribed to the quantum confinement effect. Unusually long excitonic lifetimes in these 2D systems appear to indicate low density of defects.

Original languageEnglish (US)
Article number235504
JournalJournal of Physics D: Applied Physics
Volume42
Issue number23
DOIs
StatePublished - Jan 1 2009

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Acoustics and Ultrasonics
  • Surfaces, Coatings and Films

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