Ultrathin single-crystal ZnO nanobelts: Ag-catalyzed growth and field emission property

G. Z. Xing, X. S. Fang, Z. Zhang, D. D. Wang, X. Huang, J. Guo, L. Liao, Z. Zheng, H. R. Xu, T. Yu, Z. X. Shen, C. H.A. Huan, T. C. Sum, H. Zhang, Tao Wu

Research output: Contribution to journalArticlepeer-review

81 Scopus citations

Abstract

We report the growth of ultrathin single-crystal ZnO nanobelts by using a Ag-catalyzed vapor transport method. Extensive transmission electron microscopy and atomic force microscopy measurements reveal that the thickness of the ultrathin ZnO nanobelts is ∼ 2nm. Scanning electron microscopy and post-growth annealing studies suggest a '1D branching and 2D filling' growth process. Our results demonstrate the critical role of catalyst in the deterministic synthesis of nanomaterials with the desired morphology. In addition, these ultrafine nanobelts exhibit stable field emission with unprecedented high emission current density of 40.17mAcm-2. These bottom-up building blocks of ultrathin ZnO nanobelts may facilitate the construction of advanced electronic and photonic nanodevices.

Original languageEnglish (US)
Article number255701
JournalNanotechnology
Volume21
Issue number25
DOIs
StatePublished - Jun 7 2010

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Ultrathin single-crystal ZnO nanobelts: Ag-catalyzed growth and field emission property'. Together they form a unique fingerprint.

Cite this