Zinc selenide nanoribbons and nanowires

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)Letterpeer-review

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Author(s)

  • Yang Jiang
  • Xiang-Min Meng
  • Wing-Ching Yiu
  • Ji Liu
  • Jun-Xian Ding
  • Shuit-Tong Lee

Detail(s)

Original languageEnglish
Pages (from-to)2784-2787
Number of pages4
Journal / PublicationJournal of Physical Chemistry B
Volume108
Issue number9
Online published6 Feb 2004
Publication statusPublished - 4 Mar 2004

Abstract

Zinc selenide nanoribbons and nanowires were obtained using laser ablation of ZnSe pressed powders. Their formation appeared to follow the vapor-solid and vapor-liquid-solid growth mechanisms, respectively. The product was characterized by means of scanning electron microscopy, transmission electron microscopy, micro-Raman scattering, and energy-dispersive X-ray spectroscopy. The ZnSe nanoribbons had a perfect wurtzite-2H single-crystal structure with a [120] growth direction and the {001} close-packed lattice planes of hexagonal ZnSe stacking along the nanoribbon width axis. The ZnSe nanowires grew with the {001} close-packed lattice planes of the wurtzite-2H structure stacking along the nanowire length axis. Both the longitudinal optic (LO) and transverse optic (TO) phonon peaks of the ZnSe nanowires and nanoribbons showed a clear shift toward low frequency relative to bulk values, probably because of small size and large surface effects. The ZnSe nanostructures exhibited strong self-activated luminescence centered at 596 nm.

Citation Format(s)

Zinc selenide nanoribbons and nanowires. / Jiang, Yang; Meng, Xiang-Min; Yiu, Wing-Ching; Liu, Ji; Ding, Jun-Xian; Lee, Chun-Sing; Lee, Shuit-Tong.

In: Journal of Physical Chemistry B, Vol. 108, No. 9, 04.03.2004, p. 2784-2787.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)Letterpeer-review