Alexandra Carvalho (Research Fellow)
Fri, 31/07/2015 – 12:15pm to 1:30pm
S16, Level 6, Theory Common Room
This Friday we will have our 2D Materials Forum (July), Dr. Alexandra Carvalho will give us a talk. The detail of the presentation is listed below.
Welcome to join the seminar and if anyone have some suggestions or want to be the speaker, please feel free to send email to firstname.lastname@example.org.
Pizza and soft drinks are provided in the seminar!
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Title: Valley physics in semiconductor monochalcogenides
Speaker: Alexandra Carvalho (Research Fellow)
Time and location: July 31st, Friday, 12:15, S16, Level 6, Theory conference room
We used first principles calculations to investigate systematically the structural, electronic and optical properties of `phosphorene analogues’, the family of group-IV monochalcogenides SnS, SnSe, GeS, and GeSe. We show that all are semiconducting, with bandgap energies covering part of the infra-red and visible range, and in most cases higher than phosphorene. Further, we analysed the changes associated with the reduction of dimensionality, from bulk to monolayer or bilayer form. The prospects of using these materials for spintronics and valleytronics are discussed.