Stimulated optical emission from ZnO nanobelts grown with a simple carbothermal evaporation method

B. Q. Cao, K. Sakai, Daisuke Nakamura, I. A. Palani, H. B. Gong, H. Y. Xu, M. Higashihata, T. Okada

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This work reports on the stimulated optical emission characteristics of ZnO nanobelts that were grown with a simple carbothermal evaporation method without using any catalyst or dopant. Such nanobelts grew along the a-axis enclosed by {0001} and {01-10} base planes through a vapor-solid mechanism. Room temperature and temperature-dependent photoluminescence results indicated that such nanobelts were of high optical qualityand were better than those nanobelts grown from dopant-assisted thermal evaporation or oxidation methods. Amplified spontaneous emission was observed from ZnO nanobelts with low-growth density while random laser was observed for high-density samples with increasing optical pumping density.

Original languageEnglish
Pages (from-to)1702-1707
Number of pages6
JournalJournal of Physical Chemistry C
Issue number5
Publication statusPublished - Feb 10 2011


All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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