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RESEARCH PRODUCT
Non radiative recombination centers in ZnO nanorods
D.n. MontenegroVincent SalletM.c. Martínez-tomásJuan JiménezV. MuñozOmar S. MartinezV. Hortelanosubject
Materials sciencebusiness.industryCathodoluminescenceCharacterization (materials science)Catalysissymbols.namesakeChemical physicssymbolsOptoelectronicsNanorodMetalorganic vapour phase epitaxyLuminescencebusinessRaman spectroscopyNon-radiative recombinationdescription
ABSTRACTNowadays, the nature of the non radiative recombination centres in ZnO is a matter of controversy; they have been related to extended defects, zinc vacancy complexes, and surface defects, among other possible candidates. We present herein the optical characterization of catalyst free ZnO nanorods grown by atmospheric MOCVD by microRaman and cathodoluminescence spectroscopies. The correlation between the defect related Raman modes and the cathodoluminescence emission along the nanorods permits to establish a relation between the non radiative recombination centers and the defects responsible for the local Raman modes, which have been related to Zn interstitial complexes.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-01-01 | MRS Proceedings |