sp to sp Phase Transformation in Graphene-Like Nanofilms

Authored by: Long Yuan , Zhenyu Li , Jinlong Yang

Graphene Science Handbook

Print publication date:  April  2016
Online publication date:  April  2016

Print ISBN: 9781466591370
eBook ISBN: 9781466591387
Adobe ISBN:


 Download Chapter



Due to its unique electronic structure, graphene has become a widely studied new material. It is desirable to enrich the physics and chemistry of graphene-based materials by electronic structure engineering. An important property-tuning means is introducing an sp2 to sp3 phase transformation. In this chapter, first-principles studies of functionalization induced sp2 to sp3 phase transformations of graphene-like nanofilm are reviewed. Diamondized graphene bilayer and graphene–BN hybrid bilayer have a tunable electronic structure, from magnetic semiconductor to nonmagnetic metal. More interestingly, hydrogenated wurtzite SiC nanofilm is a two-dimensional bipolar magnetic semiconductor material, where its spin polarization can be conveniently controlled by a gate voltage. The tunable electronic and magnetic properties demonstrated here pave new avenues to construct graphene-based electronics and spintronics devices.

Search for more...
Back to top

Use of cookies on this website

We are using cookies to provide statistics that help us give you the best experience of our site. You can find out more in our Privacy Policy. By continuing to use the site you are agreeing to our use of cookies.