Correction to: Scientific Reports https://doi.org/10.1038/s41598-018-20910-3, published online 14 February 2018

In the Supplementary Information file published with this Article, L. Guo is incorrectly affiliated with ‘Department of Materials Science and Metallurgy, University of Cambridge, UK’. The correct affiliation is listed below:

‘Materials department, Centre of Excellence for Advanced Materials, Dongguan, 523808, China’.