4.6 Article

Non-radiative recombination centres in catalyst-free ZnO nanorods grown by atmospheric-metal organic chemical vapour deposition

Journal

JOURNAL OF PHYSICS D-APPLIED PHYSICS
Volume 46, Issue 23, Pages -

Publisher

IOP PUBLISHING LTD
DOI: 10.1088/0022-3727/46/23/235302

Keywords

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Funding

  1. Spanish Government [MAT2007-66129, MAT-2010-20441-C02, MAT-2010-16116, TEC201128076-C02-02]
  2. Institute of Nanotechnologies for Clean Energies of the Generalitat Valenciana
  3. European Social Fund
  4. Spanish MICINN
  5. University of Valencia
  6. 'Junta de Castilla y Leon'
  7. Generalitat Valenciana [Prometeo/2011-035, ISIC/2012/008]

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We have investigated the cathodoluminescence (CL) emission and the Raman spectra along individual ZnO nanorods grown by a catalyst-free method. The spatial correlation between the CL emission and the defect related Raman modes permits establishing a correspondence between the non-radiative recombination centres (NRRCs) and the defects responsible for the 275 cm(-1) Raman band. According to this relation, the NRRCs in these nanorods are tentatively associated with complexes of zinc interstitials.

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