Reparaz, J. S.Callsen, G.Wagner, M. R.Güell Vilà, FrankMorante i Lleonart, Joan RamonSotomayor Torres, C. M.Hoffmann, A.2014-03-242014-03-2420132166-532Xhttps://hdl.handle.net/2445/52832We investigate the spatial dependence of the exciton lifetimes in single ZnO nanowires. We have found that the free exciton and bound exciton lifetimes exhibit a maximum at the center of nanowires, while they decrease by 30% towards the tips. This dependence is explained by considering the cavity-like properties of the nanowires in combination with the Purcell effect. We show that the lifetime of the bound-excitons scales with the localization energy to the power of 3/2, which validates the model of Rashba and Gurgenishvili at the nanoscale.8 p.application/pdfengcc-by (c) Reparaz, J. S. et al., 2013http://creativecommons.org/licenses/by/3.0/esNanoelectrònicaSemiconductorsOptoelectrònicaÒxid de zincLuminescènciaNanoelectronicsSemiconductorsOptoelectronicsZinc oxideLuminescenceinfo:eu-repo/semantics/article6347342014-03-24info:eu-repo/semantics/openAccess