Influence of pulsed laser annealing on the optical properties of ZnO nanorods

T. N. Lin, C. P. Huang, G. W. Shu, J. L. Shen*, C. S. Hsiao, San-Yuan Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

Abstract

The effect of pulsed laser annealing (PLA) on the photoluminescence (PL) properties of ZnO nanorods was investigated. As the fluence of pulsed laser increases, the UV PL in ZnO nanorods shows a general increasing trend, except at a range of fluences from 10 to 70 mJ/cm 2. It is found that the treatment with the PLA at the fluence of 70 mJ/cm 2 leads to a larger improvement of crystalline properties than that with rapid thermal annealing (RTA). The relationship between PL intensity and fluence of pulsed lasers can be well explained by a combination of the deterioration in surface crystallinity and the increased donor densities after PLA.

Original languageEnglish
Pages (from-to)1461-1466
Number of pages6
JournalPhysica Status Solidi (A) Applications and Materials Science
Volume209
Issue number8
DOIs
StatePublished - 1 Aug 2012

Keywords

  • ZnO
  • nanorods
  • pulsed laser annealing
  • rapid thermal annealing

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