We use cookies to ensure that we give you the best experience on our website. By continuing to browse this repository, you give consent for essential cookies to be used. You can read more about our Privacy and Cookie Policy.

Durham Research Online
You are in:

Optical properties and carrier dynamics in Co-doped ZnO nanorods

Sivan, Aswathi K. and Galán-González, Alejandro and Di Mario, Lorenzo and Tappy, Nicolas and Hernández-Ferrer, Javier and Catone, Daniele and Turchini, Stefano and Benito, Ana M. and Maser, Wolfgang K. and Steinvall, Simon Escobar and Fontcuberta i Morral, Anna and Gallant, Andrew and Zeze, Dagou A. and Atkinson, Del and Martelli, Faustino (2021) 'Optical properties and carrier dynamics in Co-doped ZnO nanorods.', Nanoscale Advances, 3 (1). pp. 214-222.


The controlled modification of the electronic properties of ZnO nanorods via transition metal doping is reported. A series of ZnO nanorods were synthesized by chemical bath growth with varying Co content from 0 to 20 atomic% in the growth solution. Optoelectronic behavior was probed using cathodoluminescence, time-resolved luminescence, transient absorbance spectroscopy, and the incident photon-to-current conversion efficiency (IPCE). Analysis indicates the crucial role of surface defects in determining the electronic behavior. Significantly, Co-doping extends the light absorption of the nanorods into the visible region, increases the surface defects, and shortens the non-radiative lifetimes, while leaving the radiative lifetime constant. Furthermore, for 1 atomic% Co-doping the IPCE of the ZnO nanorods is enhanced. These results demonstrate that doping can controllably tune the functional electronic properties of ZnO nanorods for applications.

Item Type:Article
Additional Information:Correction for ‘Optical properties and carrier dynamics in Co-doped ZnO nanorods’ by Aswathi K. Sivan et al., Nanoscale Adv., 2021, DOI: 10.1039/d0na00693a. The authors regret that the funding information was incorrectly shown in the acknowledgements section of the original manuscript. The corrected funding acknowledgement is as shown below. WKM, AMB acknowledge Spanish MINEICO (ENE2016-79282-C5-1-R (AEI/FEDER, UE)), MICINN (PID2019-104272RB-C51/AEI/10.13039/501100011033), CSIC (2019AEP010) and Gobierno de Aragón (Grupo Reconocido DGA T03_20R). The Royal Society of Chemistry apologises for these errors and any consequent inconvenience to authors and readers. Correction: Correction published: 21 Dec 2020
Full text:(VoR) Version of Record
Available under License - Creative Commons Attribution Non-commercial 3.0.
Download PDF
Publisher Web site:
Publisher statement:This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence.
Date accepted:09 November 2020
Date deposited:15 June 2021
Date of first online publication:10 November 2020
Date first made open access:15 June 2021

Save or Share this output

Look up in GoogleScholar