Image of the week: manipulating graphene

The first image of the week of 2016 comes from our recently published special issue on 2D semiconductors. There are many techniques used to manipulate graphene’s crystal structure in order to take advantage of its many extraordinary properties. S M Hollen et al examine the development of native defects in graphene grown by the UHV method. Using scanning tunnelling microscopy they observe two types of defects and how these affect the graphene lattice.

STM images of UHV-grown graphene islands on Cu(1 1 1). Yellow arrows indicate examples of bright defects and blue arrows indicate examples of dark defects. The red arrow in (b) points to a cluster of dark defects and the green arrow in (e) points to a graphene grain boundary.

STM images of UHV-grown graphene islands on Cu(1 1 1). Copyright IOP Publishing 2016.

The work provides further insight into how growth techniques may be used to program defect density in graphene crystals for controllable doping and functionalization for use in graphene devices. You can read the full article here.

This work is licensed under a Creative Commons Attribution 3.0 Unported License. Thumbnail image (adapted) and image in post from S M Hollen et al 2016 J. Phys.: Condens. Matter 28 034003. Both copyright IOP Publishing 2016.

Categories: Journal of Physics: Condensed Matter

Tags: , , , ,

%d bloggers like this: