Correction to: Scientific Reports https://doi.org/10.1038/s41598-019-53693-2, published online 11 December 2019

This Article contains a typographical error in the Results and Discussion section under subheading ‘Experimental analysis of the optical properties’ where,

“{L}_{w}  =  2.4 nm”

should read:

“Lw = 2.4 nm”