Effects of postgrowth annealing treatment on the photoluminescence of zinc oxide nanorods

D. Wang, H. W. Seo, C. C. Tin, M. J. Bozack, J. R. Williams, M. Park, N. Sathitsuksanoh, An Jen Cheng, Y. H. Tzeng

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Abstract

Postgrowth annealing was carried out to investigate the photoluminescence of zinc oxide (ZnO) nanorods synthesized using a thermal chemical vapor deposition method. The observed change in photoluminescence after the annealing processes strongly suggests that positively charged impurity ions or interstitial Zn ions are the recombination centers for green luminescence observed in the present sample. A model based on the interplay between the band bending at the surface and the migration of positively charged impurity ions or Zn ions was proposed, which satisfactorily explains the observed photoluminescence.

Original languageEnglish
Article number113509
JournalJournal of Applied Physics
Volume99
Issue number11
DOIs
Publication statusPublished - 2006 Jun 1

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Wang, D., Seo, H. W., Tin, C. C., Bozack, M. J., Williams, J. R., Park, M., Sathitsuksanoh, N., Cheng, A. J., & Tzeng, Y. H. (2006). Effects of postgrowth annealing treatment on the photoluminescence of zinc oxide nanorods. Journal of Applied Physics, 99(11), [113509]. https://doi.org/10.1063/1.2200593