Chemical solution-process method to synthesize ZnO nanorods with ultra-thin pinheads and ultra-thin nanobelts

  • W. Bai
  • , K. Yu*
  • , Q. Zhang
  • , Y. Huang
  • , Q. Wang
  • , Z. Zhu
  • , N. Dai
  • , Y. Sun
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

ZnO nanorods with 30 nm-diameter ultra-thin pinheads and ultra-thin nanobelts were successfully synthesized using a thiourea solution to etch nanorods and nancombs, which were obtained by a conventional thermal evaporation method. The materials obtained were investigated by field emission scanning electron microscopy and energy-dispersive X-ray fluorescence. The data shows that hydrogen ions play an important role in synthesizing ZnO nanorods with ultra-thin pinheads and ultra-thin nanobelts. Field emission plots indicated that the turn-on field was reduced from 2.10 V/μm to 1.55 V/μm after thiourea solution treatment at a current density of 0.1 μA/cm2. Room-temperature photoluminescence spectra from ZnO nanostructures showed the PL spectrum peaks shifted towards short wavelengths with a large enhancement of UV bands compared with those of ZnO nanorods and nanocombs.

Original languageEnglish
Pages (from-to)755-759
Number of pages5
JournalApplied Physics A: Materials Science and Processing
Volume87
Issue number4
DOIs
StatePublished - Jun 2007

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